Breastfeeding

Feeding of babies or young children with milk from a woman's breast

"Suckling" redirects here. For other uses, see Suckling (disambiguation).

A baby being breastfed Video summary of article with script

Breastfeeding, also known as nursing, is the process where breast milk is fed to a child.[1] Breast milk may be from the breast, or may be pumped and fed to the infant. The World Health Organization (WHO) recommend that breastfeeding begin within the first hour of a baby's birth and continue as the baby wants.[2] Health organizations, including the WHO, recommend breastfeeding exclusively for six months.[3][4][5] This means that no other foods or drinks, other than vitamin D, are typically given.[6] The WHO recommends exclusive breastfeeding for the first 6 months of life, followed by continued breastfeeding with appropriate complementary foods for up to 2 years and beyond.[3][4] Of the 135 million babies born every year, only 42% are breastfed within the first hour of life, only 38% of mothers practice exclusive breastfeeding during the first six months, and 58% of mothers continue breastfeeding up to the age of two years and beyond.[3]

Breastfeeding has a number of benefits to both mother and baby that infant formula lacks.[4][7] Increased breastfeeding to near-universal levels in low and medium income countries could prevent approximately 820,000 deaths of children under the age of five annually.[8] Breastfeeding decreases the risk of respiratory tract infections, ear infections,  sudden infant death syndrome (SIDS), and diarrhea for the baby, both in developing and developed countries.[3][4][9]: 13 Other benefits have been proposed to include lower risks of asthma, food allergies, and diabetes.[4][8] Breastfeeding may also improve cognitive development and decrease the risk of obesity in adulthood.[3][10]

Benefits for the mother include less blood loss following delivery, better contraction of the uterus, and a decreased risk of postpartum depression.[4] Breastfeeding delays the return of menstruation, and in very specific circumstances, fertility, a phenomenon known as lactational amenorrhea.[4][9]: 83 Long-term benefits for the mother include decreased risk of breast cancer, cardiovascular disease, diabetes, metabolic syndrome, and rheumatoid arthritis.[4][8][9]: 13 Breastfeeding is less expensive than infant formula,[11][12] but its impact on mothers' ability to earn an income is not usually factored into calculations comparing the two feeding methods.[13] It is also common for women to experience generally manageable symptoms such as; vaginal dryness, De Quervain syndrome, cramping, mastitis, moderate to severe nipple pain and a general lack of bodily autonomy. These symptoms generally peak at the start of breastfeeding but disappear or become considerately more manageable after the first few weeks.

Feedings may last as long as 30–60 minutes each as milk supply develops and the infant learns the Suck-Swallow-Breathe pattern.[9]: 50–51 However, as milk supply increases and the infant becomes more efficient at feeding, the duration of feeds may shorten.[9]: 50–51 Older children may feed less often.[14] When direct breastfeeding is not possible, expressing or pumping to empty the breasts can help mothers avoid plugged milk ducts and breast infection, maintain their milk supply, resolve engorgement, and provide milk to be fed to their infant at a later time.[1][15][16][9]: 55, 63–67 Medical conditions that do not allow breastfeeding are rare.[4] Mothers who take certain recreational drugs should not breastfeed, however, most medications are compatible with breastfeeding.[9]: 17 Current evidence indicates that it is unlikely that COVID-19 can be transmitted through breast milk.[17] Smoking tobacco and consuming limited amounts of alcohol and/or coffee are not reasons to avoid breastfeeding.[18][19][20]

## Breastfeeding physiology

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When the baby suckles their mother's breast, a hormone called oxytocin compels the milk to flow from the alveoli (lobules), through the ducts (milk canals), into the sacs (milk pools) behind the areola, and then into the baby's mouth. Normal histology of the breast during lactation.

Main articles: Lactation and Maternal physiological changes in pregnancy

Breast development starts in puberty with the growth of ducts, fat cells, and connective tissue.[9]: 18–21 The ultimate size of the breasts is determined by the number of fat cells. The size of the breast is not related to a mother's breastfeeding capability or the volume of milk she can produce.[9]: 18–21 The process of milk production, termed lactogenesis, occurs in 3 stages. The first stage takes place during pregnancy, allowing for the development of the breast and production of colostrum, the thick, early form of milk that is low in volume, but rich in nutrition.[9]: 18–21 The birth of the baby and the placenta triggers the onset of the second stage of milk production, triggering the milk to come in over the next several days. The third stage of milk production occurs gradually over several weeks, and is characterized by a full milk supply that is regulated locally (at the breast), predominately by the infant's demand for food. This differs from the second stage of lactogenesis, which is regulated centrally (in the brain) by hormone feedback loops that naturally occur after the placenta is delivered.[9]: 18–21 [21]

Although traditionally, lactation occurs following pregnancy, lactation may also be induced with hormone therapy and nipple stimulation in the absence of pregnancy.

### Lactogenesis I and other changes in pregnancy

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Changes in pregnancy, starting around 16 weeks gestational age, prepare the breast for lactation. These changes, collectively known as Lactogenesis I, are directed by hormones produced by the placenta and the brain, namely estrogen, progesterone, prolactin, which gradually increase throughout the pregnancy, and result in the structural development of the alveolar (milk-producing) tissue and the production of colostrum.[9]: 18–21 [22][23] While prolactin is the predominant hormone in milk production, progesterone, which is at high levels during pregnancy, blocks the prolactin receptors in the breast, thus inhibiting milk from "coming in" during pregnancy.[9]: 18–21 [21][24]

Many other physiologic changes occur under the control of progesterone and estrogen. These changes include, but are not limited to, dilation of blood vessels, increased blood flow to the uterus, increased availability of glucose (which subsequently is passed through the placenta to the fetus), and increased skin pigmentation, which results in darkening of the nipples and areola, formation of the linea nigra, and onset of melasma of pregnancy.[9]: 18–21 [25][26]

### Lactogenesis II

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Maternal hormone levels during pregnancy and after delivery of the placenta. Estradiol, estriol, progesterone, testosterone, and sex hormone binding globulin (SHBG) all increase throughout the pregnancy, and experience an abrupt drop-off after delivery of the placenta.[24][25]

The third stage of labor describes the period between the birth of the baby and the delivery of the placenta, which normally lasts less than 30 minutes.[27] The delivery of the placenta causes an abrupt drop off of placental hormones.[27][9]: 18–21 [24] This drop, specifically in progesterone, allows prolactin to work effectively at its receptors in the breast, leading to an array of changes over the next several days that allow the milk to "come in"; these changes are known collectively as Lactogenesis II.[9]: 18–21 [24][28] Colostrum continues to be produced for these next few days, as Lactogenesis II occurs.[9]: 18–21 Milk may "come in" as late as five days after delivery; however, this process may be delayed due to a number of factors as described in the Process "Delay in milk 'coming in'" subsection below.[9]: 18–21 [24] Oxytocin, which signals the smooth muscle of the uterus to contract during pregnancy, labor, birth and following delivery, is also involved in the process of breastfeeding.[27][24] Oxytocin also contracts the smooth muscle layer of band-like cells surrounding the milk ducts and alveoli to s the newly produced milk through the duct system and out through the nipple.[9]: 18–21 [24] This process is known as the milk ejection reflex, or let-down.[9]: 18–21 Because of oxytocin's dual activity at the breast and the uterus, breastfeeding mothers may also experience uterine cramping at the time of breastfeeding, for the first several days to weeks.[24]

### Lactogenesis III

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Prolactin and oxytocin are vital for establishing milk supply initially, however, once the milk supply is well established, the volume and content of the milk produced is controlled locally.[9]: 18–21 [21] Although prolactin levels are higher on average among breastfeeding mothers, prolactin levels themselves do not correlate to milk volume.[9]: 18–21 At this stage, production of milk is triggered by milk drainage from the breasts. The only way to maintain milk supply is to drain the breasts frequently. Infrequent or incomplete drainage of the breasts, decreases blood flow to the alveoli and signals the milk-producing cells to produce less milk.[9]: 18–21 [21][24][9]: 72–80

## Breast milk

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Main article: Breast milk

Two 25 ml samples of human breast milk. The sample on the left is foremilk, the watery milk coming from a full breast. To the right is hindmilk, the creamy milk coming from a nearly empty breast.[29]

The content of breast milk should be discussed in two separate categories – the nutritional content and the bioactive content, that is the enzymes, proteins, antibodies, and signaling molecules that assist the infant in ways outside of nutrition.[9]: 10–14

### Nutritional content

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The pattern of intended nutrient content in breast milk is relatively consistent. Breastmilk is made from nutrients in the mother's bloodstream and bodily stores. It has an optimal balance of fat, sugar, water, and protein that is needed for a baby's age appropriate growth and development.[9]: 10–14 [30] That being said, a variety of factors can influence the nutritional makeup of breastmilk, including gestational age, age of infant, maternal age, maternal smoking, and nutritional needs of the infant.[9]: 10–14 [31]

The first type of milk produced is called colostrum. The volume of colostrum produced during each feeding is appropriate for the size of the newborn stomach and is sufficient, calorically, for feeding a newborn during the first few days of life.[9]: 27–34 [32] Produced during pregnancy and the first days after childbirth, colostrum is rich in protein and Vitamins A, B12 and K, which supports infants' growth, brain development, vision, immune systems, red blood cells, and clotting cascade.[33][34][35][36] The breast milk also has long-chain polyunsaturated fatty acids which help with normal retinal and neural development.[37] The caloric content of colostrum is about 54 Calories/100mL.[38] The second type of milk is transitional milk, which is produced during the transition from colostrum to mature breast milk. As the breast milk matures over the course to several weeks, the protein content of the milk decreases on average.[9]: 10–14 The caloric content of breastmilk is reflective of the caloric requirements of the infant, increasing steadily after 12 months.[9]: 10–14 The caloric content of breastmilk in the first 12 months of breastfeeding is approximated to be 58-72 Calories/100mL. Comparatively, the caloric content after 48 months is approximately 83-129 Calories/100mL.[9]: 10–14

When a mother has her full milk supply and is feeding her infant, the first milk to be expressed is called the foremilk. Foremilk is typically thinner and less rich in calories. The hindmilk that follows is rich in calories and fat.[39]: 239

If the mother is not deficient in vitamins, breast milk normally supplies the baby's needs, with the exception of Vitamin D. The CDC, National Health Service (UK), Canadian Paediatric Society, the American Academy of Pediatrics, and the American Academy of Family Physicians all agree that breast milk alone does not provide infants with an adequate amount of Vitamin D, thus they advise parents to supplement their infants with 400 IU Vitamin D daily.[40][41][42][43][44][45] Providing this quantity of Vitamin D to breastfeeding infants has been shown to reduce rates of Vitamin D insufficiency (defined as 25-OH vitamin D < 50 nmol/L). However, there was insufficient evidence in the most recent Cochrane Review, to determine if this quantity reduced rates of Vitamin D deficiency (defined as 25-OH vitamin D < 30 nmol/L) or rickets.[46] Term infants typically do not need iron supplementation. Delaying clamping of the cord at birth for at least one minute improves the infants' iron status for the first year.[9]: 50–51 [47] When complementary (solid) foods are introduced at about 6 months of age, parents should make sure to choose iron-rich foods to help maintain their children's iron stores.[9]: 50–51 [47]

### Bioactive content

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In addition to the nutritional benefits of breastmilk, breast milk also provides enzymes, antibodies, and other substances that support the infant's growth and development.[9]: 10–14 The bioactive makeup of breastmilk also changes based on the needs of the infant; for example, when an infant is recovering from an upper respiratory infection, local signaling allows for increased passage of immune cells and proteins to aid the infant's immune system.[9]: 10–14 [48]

Produced during pregnancy and the first days after childbirth, colostrum is easy to digest and has laxative properties that help the infant to pass early stools.[9]: 27–34 [34] This aids in the excretion of excess bilirubin, which helps to prevent jaundice.[9]: 34–47 Colostrum also helps to seal the infants gastrointestinal tract from foreign substances and germs, which may sensitize the baby to foods that the mother has eaten and decrease the risk of diarrheal illness.[9]: 10–14 [24] Although the baby has received some antibodies (IgG) through the placenta, colostrum contains a substance which is new to the newborn, secretory immunoglobulin A (IgA). IgA works to attack germs in the mucous membranes of the throat, lungs, and intestines, which are most likely to come under attack from germs.[9]: 10–14 [24][49] Additionally, colostrum and mature breast milk contain many antioxidant and anti-inflammatory enzymes and proteins that decrease the risk of gastrointestinal allergies to food, respiratory allergies to air particles like pollen, and other atopic diseases, such as asthma and eczema.[9]: 10–14 [24]

## Process

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### Commencement

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Newborn rests as a caregiver checks its breath sounds with a stethoscope

It is recommended for mothers to initiate breastfeeding within the first hour after birth.[27][9]: 27–34 [50][51][52] Uninterrupted skin-to-skin contact and breastfeeding can begin immediately after birth, and should continue for at least one hour after birth.[9]: 27–34 [52] This period of infant-mother interaction, known generally as kangaroo care, or the "golden hour" during the immediate postpartum period, assists in the mother–child bonding for both mother and baby, and is thought to encourage instinctual breastfeeding behavior in the infant.[9]: 27–34 [53] Newborns who are immediately placed on their mother's skin have a natural instinct to latch on to the breast and start nursing, typically within one hour of birth. Success with breastfeeding in this "golden hour" increases the likelihood of successful breastfeeding at discharge.[9]: 27–34

Skin-to-skin mother-baby contact should still occur, even if the baby is born by Cesarean surgery.[9]: 27–34 [54] The baby is placed on the mother in the operating room or the recovery area. If the mother is unable to immediately hold the baby a family member can provide skin-to-skin care until the mother is able.

#### Breast crawl

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According to studies cited by UNICEF, babies naturally follow a process which leads to a first breastfeed. Shortly after birth, the infant relaxes and makes small movements of the arms, shoulders and head. If placed on the mother's abdomen the baby gradually inches towards the breast, called the breast crawl[53] and begins to feed. After feeding, it is normal for a baby to remain latched to the breast while resting. This is sometimes mistaken for lack of appetite. Absent interruptions, all babies follow this process. Rushing, by picking up and moving the infant to the breast, or interrupting the process, such as removing the baby to be weighed, may complicate subsequent feeding.[55] Activities such as weighing, measuring, bathing, needle-sticks, and eye prophylaxis wait until after the first feeding.[56]

#### Preterm or low-tone infants

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Children who are born preterm (before 37 weeks), children born in the early term period (37 weeks–38 weeks and 6 days), and children born with low muscular tone, such as those with chromosomal abnormalities like Down syndrome or neurological conditions like Cerebral palsy, may have difficulty in initiating breast feeds immediately after birth.[9]: 34–47 [57][58] These late preterm (34 weeks –36 weeks and 6 days) and early term (37 weeks–38 weeks and 6 days) infants are at increased risk for both breastfeeding cessation and complications of insufficient milk intake (e.g., dehydration, hypoglycemia, jaundice, and excessive weight loss).[59] They are often expected to feed like term babies, but they have less strength and stamina to feed adequately.[59]

By convention, such children are often fed on expressed breast milk or other supplementary feeds through tubes, supplemental nursing systems, bottles, spoons or cups until they develop satisfactory ability to suck and swallow breast milk. Regardless of feeding method chosen, human milk feedings, whether from the mother or a donor, are important in the brain development of premature infants, and the NICU having a standardized protocol for feeding is protective against dangerous gastrointestinal infections (necrotizing enterocolitis) in these infants.[39]: 502–545 Frequent breastfeeding and/or small amounts of supplementation may be needed for successful outcomes; breast pumping and/or hand expression is often helpful in providing adequate stimulation to the mother's breasts.[59]

Starting to breastfeed may be challenging for mothers of preterm infants, especially those born before 34 weeks, because their breasts may still be developing (in Lactogenesis I, see Breastfeeding Physiology). Additionally, mother–infant separation and the stressful environment of the NICU are also barriers to breastfeeding. Availability of a lactation specialist in the NICU can be helpful for mothers trying to establish their milk supply.[39]: 502–545 Additionally, skin-to-skin (Kangaroo Care) has been shown to be safe and beneficial to both mother and baby.[39]: 502–545 Kangaroo Care stabilizes newborn premature infants' vital signs, such as their heart rate, providing a naturally warm environment that helps them regulate their temperature.[39]: 502–545 It is also beneficial to the mother, as it may improve the development of milk supply and be beneficial for mental health.[9]: 34–47

### Timing

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Newborn babies usually breastfeed 8 to 12 times every 24 hours, and they typically express hunger cues every one to three hours for the first two to four weeks of their lives.[27][9]: 27–34 [9]: 50–51 [60] A newborn has a small stomach capacity, approximately 20 ml.[61] The amount of breast milk that is produced is timed to meet the infant's needs in that the first milk, colostrum, is concentrated but produced in only very small amounts, gradually increasing in volume to meet the expanding size of the infant's stomach capacity.[9]: 27–34 [49]

Many newborns will typically feed for 10 to 15 minutes on each breast, however feeds may last up to 45 minutes depending on infant wakefulness and efficiency.[9]: 50–51 [62]

It is important for parents to recognize the difference between Nutritive and Non-Nutritive Sucking. Nutritive Sucking follows a slow, rhythmic pattern, with 1–2 sucks per swallow. Non-nutritive sucking is a faster-paced sucking pattern with few swallows. This swallow pattern is often observed at the beginning and/or the end of a feed. At the beginning of the feed, this pattern triggers milk letdown, while at the end of the feed, this may be a signal of the infant tired or becoming relaxed with a slower milk velocity.[9]: 27–34

### Duration and exclusivity

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Numerous health organizations, including, but not limited to, the CDC, WHO, National Health Service, Canadian Pediatric Society, American Academy of Pediatrics, and American Academy of Family Physicians, recommend breastfeeding exclusively for six months following birth, unless medically contraindicated.[3][9]: 15–17 [63][64][65][66][4][67][68][69][70][71][72] Exclusive breastfeeding is defined as "an infant's consumption of human milk with no supplementation of any type (no water, no juice, no nonhuman milk and no foods) except for vitamins, minerals and medications."[9]: 15–17 [56] Supplementation with human donor breastmilk may be indicated in some specific cases, as discussed below.[73] After solids are introduced at around six months of age, continued breastfeeding is recommended. The American Academy of Pediatrics recommends that babies be breastfed at least until 12 months, or longer if both the mother and child wish.[9]: 15–17 [4] The World Health Organization's guidelines recommend "continue[d] frequent, on-demand breastfeeding until two years of age or beyond.[50][74]

Extended breastfeeding means breastfeeding after the age of 12 or 24 months, depending on the source. In Western countries such as the United States, Canada, and Great Britain, extended breastfeeding is relatively uncommon and can provoke criticism.[75][76]

In the United States, 22.4% of babies are breastfed for 12 months, the minimum amount of time advised by the American Academy of Pediatrics. In India, mothers commonly breastfeed for 2 to 3 years.[77]

#### Supplementation

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Supplementation is defined as the use of additional milk or fluid products to feed an infant, in addition to breastmilk, during the first 6 months of life.[9]: 34–47 [78] The Academy of Breastfeeding Medicine recommends only supplementing when medically indicated, as opposed to mixing use of formula and breastmilk for reasons that are not necessarily medical indications.[78] Some medical indications for supplementation include low blood sugar, dehydration, excessive weight loss or poor gain, and jaundice in the infant; true low milk supply; severe nipple pain unrelieved by interventions; and medical contraindications to breastfeeding, as described below.[9]: 34–47 [78] Supplements can be delivered at the breast through a supplemental nursing system in order to stimulate the production of the mother's own milk and to preserve the breastfeeding relationship.[79] Some parents may desire to supplement proactively if early signs of insufficient intake, such as decreased urination, dry mucous membranes, or persistent signs of hunger, are noticed. If these signs are noticed, it is important to have the mother-infant dyad evaluated by a breastfeeding specialist or pediatrician to determine the true cause of the symptoms and determine the need for supplementation.[78] Often, these symptoms are caused by poor milk transfer at the breast, and can be solved with adjustments to the latch, but occasionally they may be caused by other processes, unrelated to breastfeeding, so evaluation is necessary.[9]: 72–73 Supplementation with formula is associated with decreased rates of exclusive breastfeeding at 6 months, and overall decreased length of breastfeeding.[78]

In terms of what to supplement with, the first choice is always the mother's own breastmilk, save any medical contraindications to its use.[9]: 34–47 [78] The second best option for supplementation is pasteurized human donor milk.[9]: 34–47 [78] Finally, specific formulas may be used for supplementation if maternal or donor breastmilk are not options.[9]: 34–47 [78] One situation where this may be the case is in cases of infant metabolic diseases, such as galactosemia.[9]: 15–17 [78] The Academy of Breastfeeding Medicine recommends that supplementation only be used when medically indicated and when overseen by a medical professional, such as a pediatrician or family physician, and after consultation with an IBCLC.[9]: 34–47 Without sufficient breast stimulation, supplementation can reduce the mother's milk production, so pumping would be indicated in these cases if continued breastfeeding is desired.

Indications for use of donor breastmilk are very closely outlined by the American Academy of Pediatrics (AAP). Due to low availability and high cost of donor breastmilk, the AAP recommends prioritizing the use of the milk for infants born with a weight of less than 1500g (approximately 3lb 5oz), as it is helpful in decreasing rates of the severe intestinal infection, necrotizing enterocolitis, in this population.[73]

### Position

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Effective positioning and technique for latching on are necessary to prevent nipple soreness and allow the baby to obtain enough milk.[9]: 27–34 [9]: 50–51 [80]

Babies can successfully latch on to the breast from multiple positions. Each baby may prefer a particular position. The "football" hold places the baby's legs next to the mother's side with the baby facing the mother. Using the "cradle" or "cross-body" hold, the mother supports the baby's head in the crook of her arm. The "cross-over" hold is similar to the cradle hold, except that the mother supports the baby's head with the opposite hand. The mother may choose a reclining position on her back or side with the baby lying next to her.[81]

No matter the position the parent-infant dyad finds most comfortable, there are a few components of every position which will help facilitate a successful latch. One key component is maternal comfort. The mother should be comfortable while breastfeeding, and should have her back, feet, and arms supported with pillows as necessary. Additionally, when starting the latch process, the infant should be aligned with their abdomen facing their mother, which can be remembered as "tummy-to-mummy," and with their hips, shoulders and head aligned. This alignment helps to facilitate proper, efficient swallowing mechanics.[9]: 27–34

* Standing mother breastfeeding her baby, Canjambari, Guinea-Bissau, 1973

* Breastfeeding – Cradle hold.

* Breastfeeding – Cross cradle position.

* Breastfeeding – Football hold.

* Breastfeeding – Semi-reclining position.

* Breastfeeding – Side-lying position.

* Breastfeeding – Supine position.

* Breastfeeding – Twins, cross cradle position I.

* Breastfeeding – Twins, football or clutch hold.

* Breastfeeding – Twins, parallel position II.

### Latching

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Main article: Latch (breastfeeding)

Latching refers to how the baby fastens onto the breast while feeding.

#### Making use of anatomy and reflexes

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The process of latching a newborn onto the breast[82]

Sebaceous glands called Glands of Montgomery located in the areola secrete an oily fluid that lubricate and protect the nipple during latching. The visible portions of the glands can be seen on the skin's surface as small round bumps.[9]: 18–21 The rooting reflex is the baby's natural tendency to turn towards the breast with the mouth open wide.[83] When preparing to latch, mothers should make use of this reflex by gently stroking the baby's philtrum, the area between the upper lip and the nose, with their nipple to induce the baby to open their mouth with a wide gape.[82] One way to help the infant achieve a deep latch is to compress the breast tissue into a "U" or "hamburger shape," so that the infant can fit the breast tissue into their mouth. This is done by the mother placing her thumb and fingers in line with the infant's nose and mouth respectively and using this grip to compress the breast tissue.[82]

Example and indicators of a good latch[84][26]

#### Bringing the infant in to latch

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If the newborn seems to need help in latching on, the mother should focus on helping the infant by bringing their chin to the breast first. This facilitates a deep, asymmetric latch, and also helps the infant extend their neck and tilt their forehead back to maintain this deep latch and ease the swallowing process.[85]

#### Signs of a good, deep latch

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In a good latch, a large amount of the areola, in addition to the nipple, is in the baby's mouth. The amount of areola visible on either side of the infant's mouth should be asymmetric, meaning most of the "bottom" of the areola should be in the infants mouth and much more of the "top" of the areola should be visible. This position is helpful in pointing the nipple toward the roof of the infant's mouth, helping the infant recruit more milk.[84] The baby's lips should be flanged out.[86][87] The neck should be extended to facilitate swallowing, and as such, the chin will be close to the breast, and the forehead and nose should be far from the breast.[84] Another sign of a good latch is the contour of the infant's cheeks; the cheeks should be rounded all the way to the edge of the mouth, rather than dimpled or creased at the edge of the mouth.[88] This is a good indicator of effective suck mechanics. Additionally, in order to achieve a deep latch, the infant's mouth must be open wide, preferably wider than 140 degrees.[26]

#### Signs of a poor, shallow latch

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Example and indicators of a poor, shallow latch[84]

In a poor, shallow latch, the infant latches close to or at the nipple, causing the mother intense pain during latching that is relieved with infant release from the breast.[89] While the infant is at the breast, the first indicators of a shallow latch are having the areola be largely visible outside the infant's mouth and a narrow infant mouth angle.[84] Additional signs result from poor positioning when the infant comes toward the breast to latch. If the infant leads with their brow or forehead, they are likely to flex their neck; this mechanism of latching causes the nipple to point down and then hit the hard palate during sucking.[89] From an external view, this manifests as the nose and forehead being close to the breast and the chin far from the breast.[84] This neck flexion also obstructs the normal swallowing mechanism, preventing the infant from drinking efficiently.[84] In addition to not being able to swallow properly, this shallow latch prevents the infant from adequately compressing the glandular tissue behind the nipple and stimulating milk flow; thus, they may begin to apply more suction, which manifests externally as cheek dimpling, or sucking their cheeks in.[9]: 27–34 [84]

### Let-down reflex

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See also: Lactation § Milk ejection reflex

When the baby suckles muscles in the breast squeeze milk towards the nipples. This is called the let-down reflex. Some women report that they do not experience anything while others report a tingling feeling which is sometimes described as quite strong. The baby may be seen to respond to the beginning of the flow of milk by changing from quick sucks to deep rhythmic swallows. Sometimes the let-down is so strong that the baby splutters and coughs and the mother may need to remove the baby from her breast for a short time until the flow becomes less forceful. Milk may also let-down unexpectedly when a mother hears her baby cry or even only thinks about the baby. Nursing pads may be made or purchased to absorb unexpected milk flows.[90][91]

### Problems with breastfeeding

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Main article: Breastfeeding difficulties

#### Inverted nipples

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Main article: Inverted nipple

Infants of mothers with inverted nipples can still achieve a good latch with perhaps a little extra effort. For some women, the nipple may easily become erect when stimulated. Other women may require modified breastfeeding techniques, and some may need extra devices, such as nipple shells, modified syringes, or breast pumps to expose the nipple.[92][93] La Leche League and Toronto Public Health offer several techniques to use during pregnancy or even in the early days following birth that may help to bring a flat or inverted nipple out.[92][93]

#### Use of pacifiers

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The World Health Organization's Ten Steps to Successful Breastfeeding recommends total avoidance of pacifiers for breastfeeding infants. In 2016 a large review of studies reported that the use of a pacifier beginning at birth or after lactation was established did not significantly affect the duration of exclusive and partial breastfeeding up to four months of age. The CDC, however, currently (2022) reports that early use of pacifiers can have a negative outcome on the success of breastfeeding and they suggest that it should be delayed until breastfeeding is firmly established.[94][95][96]

Anterior tongue-tie[97]

#### Ankyloglossia

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Main article: Ankyloglossia

Ankyloglossia, also called "tongue-tie" may cause shallow latch, poor milk transfer, and other problems with breastfeeding.[9]: 34–47 There are two types of tongue-ties; an anterior tongue-tie occurs when a band of tissue, known as the frenulum, attaches the tongue to the base of the mouth, restricting the tongue's vertical movement and preventing the infant from pressing the breast and nipple into the soft palate.[9]: 34–47 A posterior tongue-tie is a band of tissue that can only be felt on exam, and tends to impact breastfeeding less severely than its anterior counterpart.[9]: 34–47 If it is determined that the inability to latch on properly is related to ankyloglossia, a simple surgical procedure to clip the frenulum can correct the condition.[9]: 34–47 [98][99][100][101] The Academy of Breastfeeding Medicine and the Australian Dental Association have raised concern over the growing trend of oral tie surgeries, due to evidence for benefit being low-quality, inconsistent, or unsupported.[102][103][104][105]

#### Engorgement

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Main article: Breast engorgement

Pre-pregnant human breasts Lactating human breasts showing evidence of engorgement

Engorgement is the swelling and stretching of the breast tissue due to accumulation of fluid in the tissue surrounding and supporting the milk-producing cells and ducts.[9]: 55 [16] Engorgement most frequently occurs as milk "comes in" and during the weaning process.[9]: 55 [106] As milk is coming in, several processes occur. At the end of pregnancy there is dilation of the blood vessels which supply the breast, allowing for leaking into the tissue or interstitial space.[16] Additionally, the birth of an infant is followed by massive fluid shifts to both offload excess fluid, which had been used to supply oxygen and nutrients to the fetus through the placenta, which is no longer needed, and supply additional fluid to the breasts in order to start the process of making milk. These fluid shifts often result in some of this excess fluid leaking into the breast tissue.[9]: 55 Finally, milk "coming in" can create an uncomfortably full feeling, which combined with the aforementioned fluid accumulation in the breast tissue, can cause severe pain.[16][9]: 55 If breastfeeding is suddenly stopped, the breasts are likely to become engorged. Pumping small amounts to relieve discomfort helps to gradually train the breasts to produce less milk. There is presently no safe medication to prevent engorgement, but cold compresses and ibuprofen may help to relieve pain and swelling. Pain should go away with emptying of the breasts. If symptoms continue and comfort measures are not helpful, it is possible a blocked milk duct or infection may be present and seek medical intervention.[107]

#### Nipple pain

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Main article: Nipple pain in breastfeeding

Although very common, nipple pain and nipple trauma (cracking, open sores) should not be normalized, as these are often signs of a shallow latch or other underlying problem that can be evaluated and fixed.[9]: 34–47 In addition to shallow latch, other causes of nipple pain include, but are not limited to, skin infection or inflammation, blood vessel spasm or the equivalent of Raynaud Syndrome in the breast, mastitis, plugged ducts, and nipple blebs.[39]: 572–593 [108] Pain caused by a problem deep in the breast may also present with nipple pain due to the paths of nerves in the breast.[39]: 572–593 In addition to the serious nature of many of these causes, nipple pain is a common reason for a mother stopping breastfeeding, so it is important that mothers experiencing nipple pain be evaluated.[39]: 572–593 [108]

#### Delay in milk "coming in"

[edit]

Main article: Delayed onset of lactation

While milk normally "comes in" by 3 days after birth, there are several reasons this may be delayed. Risk factors for this delay include maternal diabetes, stressful delivery, retained placenta, prolonged labor and birth by C-section.[39]: 84 [16][9]: 34–47 Mothers experiencing a delay in their milk coming in should consult with a lactation specialist and their pediatrician, as they may need to supplement with donor milk or formula to help the infant gain weight and pump to encourage milk to come in sooner and in greater volume.[9]: 34–47

#### Low milk supply

[edit]

Main article: Low milk supply

Breast milk supply augments in response to the baby's demand for milk, and decreases when milk is allowed to remain in the breasts.[9]: 18–21 [9]: 27–34 [21][9]: 72–80 [109] When considering a possibly low milk supply, it is important to consider the difference between "perceived low milk supply" and "true low milk supply". Perceived low milk supply occurs when mothers, for a variety of reasons, believe that they are not making enough milk to feed their infant.[9]: 72–80 These reasons may include fussiness, colic, preference for the bottle as opposed to the breast, long nursing duration, decreased sensation of breast fulness, and even decreased frequency of infant stools.[9]: 72–80 However, in these cases, it important to reassure the parent that infant weight gain is absolute proof of adequate milk intake.[9]: 49 Thus, if the infant breastfeeding exclusively, and is gaining weight appropriately, then the parent can be reassured that they are producing enough milk.[9]: 49

True low milk supply can be either primary (caused by medical conditions or anatomical issues in the mother), secondary (caused by not thoroughly and regularly removing milk from the breasts) or both. Primary causes may manifest prior to or during pregnancy, during labor, and even after birth.[9]: 72–73 Secondary causes are far more common than primary ones. One study found that 15% of healthy first-time mothers had low milk supply 2–3 weeks after birth, with secondary causes accounting for at least two-thirds of those cases.[110]

Poor milk intake is signaled by poor infant weight gain, signs of dehydration, and hypoglycemia.[9]: 49 [9]: 34–47 Poor milk intake can be caused by poor milk transfer by the infant or by true low milk supply by the mother.[9]: 52–54 When the milk "comes in" appropriately, but is followed by decreased milk supply, this is most often caused by allowing milk to remain in the breasts for long periods of time, or insufficiently draining the breasts during feeds.[9]: 72–80 If the baby is latching and swallowing well (signs of good milk transfer), but is not gaining weight as expected or is showing signs of dehydration, low milk supply in the mother can be suspected, and a lactation specialist should be consulted.[9]: 52–54 [110]

#### Newborn jaundice

[edit]

Main article: Neonatal jaundice

More than 80% of newborns develop jaundice within several days of birth.[32] Jaundice, or yellowing of the skin and eyes, occurs when bilirubin, a byproduct of the breakdown/recycling of red blood cells, builds up in the newborn's bloodstream faster than the liver can break it down and excrete it through the baby's urine and stool. By continuing to breastfeed frequently (start at 8-12 times per day), the infant's body can usually rid itself of the bilirubin excess by encouraging more urine and stool production.[32] However, in some cases, the infant may need additional treatments, such as UV light therapy or additional feedings (see Supplementation) to keep the condition from progressing into more severe problems.[32][111]

There are two types of newborn jaundice related to breastfeeding.

Breastfeeding jaundice is quite common and may occur in the first week of life in conjunction with ongoing weight loss.[32] The cause is thought to be low caloric intake. Formula-fed infants tend to lose less weight after birth compared to breastfed infants, supporting the hypothesis that breastfeeding jaundice is related to caloric intake rather than volume intake.[32] Individual risk factors, such as breastfeeding, are not predictive of developing severe jaundice: Breastfeeding is a risk factor for severely high levels of bilirubin, but the risk factor is very common, and the risk of severely high bilirubin remains small.[112]

Breast milk jaundice is jaundice that persists despite appropriate weight gain.[32] This type of jaundice may start as breastfeeding jaundice and persist, or may not appear until after the baby has begun to gain weight, typically around 4–5 days old.[9]: 34–47 [32] It often persists beyond the second and third weeks of life.[32] There is no single cause of breast milk jaundice; rather, the causes are multifactorial and frequently debated in the literature.[32] The causes of breast milk jaundice include variations in bilirubin metabolism, genetic variations, and variations in breastmilk, including the harmless and helpful germs found naturally on the surface of the skin and in the breastmilk.[32] Breast milk jaundice is usually not a reason to stop nursing.[111] It is important to consult with a physician to determine when it may be necessary to test for other causes of jaundice that may require additional treatment, such as enzyme deficiencies or problems with the red blood cells (i.e., elliptocytosis, spherocytosis, hemolysis, glucose-6-phosphate dehydrogenase deficiency).[32]

### Weaning

[edit]

Weaning is the process of replacing breast milk with other foods; the infant is fully weaned after the replacement is complete.[9]: 112–116 [9] Psychological factors affect the weaning process for both mother and infant, as issues of closeness and separation are very prominent.[113] Unless a medical emergency necessitates abruptly stopping breastfeeding, it is best to gradually increase the period between feedings and/or eliminate feedings to allow the breasts to adjust to the decreased demands without becoming engorged.[9] Studies show that a large number of women discontinue breastfeeding early due to lack of working place support for breastfeeding mothers.[114] La Leche League advises parents to shift their children's focus at bedtime away from breastfeeding, as it is often the most difficult feeding for them to let go.[115]

If weaning is begun at 12 months or later it is not necessary to switch to infant formula or "toddler formula" as is sold commercially. At 12 months it is recommended that the baby be switched to whole cow's milk. Reduced-fat or skim milk generally is not appropriate before age 2 because it does not have enough fat or calories to promote early brain development.[116]

If the mother was experiencing lactational amenorrhea, periods will begin to return with weaning, along with restored fertility.[117]

### Extended breastfeeding

[edit]

Main article: Extended breastfeeding

Extended breastfeeding usually means breastfeeding beyond the age of 12 to 24 months, depending on the culture. The American Academy of Family Physicians states that "health outcomes for mothers and babies are best when breastfeeding continues for at least two years.[118] The American Academy of Pediatrics recommends that mothers nurse for the first 12 months and "thereafter for as long as mother and baby desire." The World Health Organization recommends breastfeeding up to age 2 "or beyond."[114]

Breast milk is known to contain lactoferrin (Lf), which protects the infant from infection caused by a wide range of pathogens. The amount of Lf in breast milk is lactation-stage related. One study looked at Lf concentration in prolonged lactation from the first to the 48th month postpartum. It was found to be at the highest level in colostrum, dropped to the lowest level during 1 – 12 months of lactation, and then increased significantly during the 13–24 months of lactation, close to the Lf concentration in colostrum. At over 24 months the level dropped, though not significantly.[119]

### Professional breastfeeding support

[edit]

Lactation consultants are trained to assist mothers in preventing and solving breastfeeding difficulties such as sore nipples and low milk supply. They commonly work in hospitals, physician or midwife practices, public health programs, and private practice. Lactation consultants earn their credential, International Board Certified Lactation Consultant (IBCLC), through the International Board of Lactation Consultant Examiners.[120][121][122][123]

Breastfeeding support from a lactation consultant is associated with higher rates of any breastfeeding at 6 months but not at 1 month or 3 months post pregnancy based on a meta-analysis of studies conducted in the US and Canada.[124] Peer support for breastfeeding has been found to be associated with higher rates of any breastfeeding at 1 month and 3 to 6 months and of exclusive breastfeeding at 1 month, but it is unrelated to breastfeeding outcomes past 6 months post pregnancy.[124]

## Contraindications to breastfeeding

[edit]

### Maternal contraindications

[edit]

Medical conditions that do not allow breastfeeding are fairly rare.[4] Infants that are otherwise healthy uniformly benefit from breastfeeding,[125] however, extra precautions should be taken or breastfeeding avoided in circumstances including certain infectious diseases and medical conditions.

#### Maternal infections

[edit]

##### HIV

[edit]

A breastfeeding child can become infected with HIV. Factors such as the mother's viral load complicate breastfeeding recommendations for HIV-positive mothers. The World Health Organization highlights the possibility of breastfeeding in mothers on anti-viral therapy and with undetectable viral loads, especially in areas where access to clean water is poor and where death from infectious diseases is common, citing low transmission rates when the mother is on anti-viral therapy.[3][126][127] They also recommend that national authorities in each country decide which infant feeding practice should be promoted by their maternal and child health services to best avoid HIV transmission from mother to child.[128] However, the CDC continues to recommend against HIV-positive mothers breastfeeding in the United States.[127][129] Infant formula should only be given if this can be safely done.[3]

##### Human T-lymphotropic virus (types I and II)

[edit]

Human T-Lymphotrophic Virus (HTLV) is able to be passed through breastmilk from mother to child.[9]: 15–17 [130] The worldwide rate of transmission through breastmilk is estimated to be 3.9–27%, and this risk is increased by high maternal viral load and prolonged periods of breastfeeding.[131][132] Current data demonstrates that while breastfeeding for less than six months does not, independently, increase risk of HTLV-1 transmission, not breastfeeding during that time does decrease risk of transmission.[133] As such, CDC recommends against breastfeeding when mothers have HTLV Types I or II.[9]: 15–17 [134] Recognizing the importance of breastfeeding in more resource-poor areas of the world, the World Health Organization recommends shortening the duration of breastfeeding, or avoiding breastfeeding where possible.[131]

##### Hemorrhagic viral disease (Marburg virus, Ebola)

[edit]

Mothers with Marburg virus or Ebola should not breastfeed their infants or feed them with expressed breastmilk.[135][39]: 738–753

##### Tuberculosis

[edit]

Infants whose mothers have suspected untreated tuberculosis (TB) should be isolated from their mothers to reduce risk of transmission. As such, these infants should not be breastfed during this time and until the mother has been treated appropriately for 2 weeks and is no longer contagious.[135][39]: 411–313 [136] However, these infants may be fed expressed breastmilk from their mother.[135][39]: 411–313 [136] Transmission of TB through breastmilk, without an isolated breast infection caused by the Tuberculosis bacteria (Mycobacterium tuberculosis), has never been documented in the scientific literature.[39]: 411–313 Mothers who do have an isolated breast infection caused by Mycobacterium tuberculosis, termed tuberculous mastitis, should not feed their infants with their own breastmilk, even if it is fed by bottle.[39]: 411–313

##### Herpes simplex

[edit]

Herpes simplex virus (HSV) is the virus that causes genital herpes and oral cold sores, and it can be very dangerous to infants.[137] The CDC advises to continue breastfeeding if there are no open/active lesions on the breast and other lesions covered.[137]

##### Herpes zoster (chickenpox and shingles)

[edit]

Varicella zoster is the virus responsible for chickenpox and shingles (also known as herpes zoster).[138] The CDC advises that breastfeeding is safe to continue as long as the breasts are clear of lesions, also emphasizing that if pumping or hand expressing milk, proper hand-hygiene should be used to minimize transfer.[9]: 15–17 [138]

An infographic from the World Health Organization on COVID-19 preventive measures to be taken while breastfeeding

##### COVID-19 (no contraindication)

[edit]

In May 2020, WHO and UNICEF stressed that the ongoing COVID-19 pandemic was not a reason to discontinue breastfeeding. They recommend that women should continue to breastfeed during the pandemic even if they have confirmed or suspected COVID-19 because evidence indicates that it is not likely that COVID-19 can be transmitted through breast milk.[139] A study published in 2021 found that, while SARS-CoV-2 RNA may be found in some samples of breastmilk from recently infected mothers, the breastmilk does not contain infectious virus and is not considered a transmission risk factor.[140] Mothers who have suspected or confirmed diagnoses of COVID-19 should thoroughly wash their hands and wear a well-fitting mask prior to breastfeeding their infant, or express breastmilk and feed the infant by bottle.[141]

#### Substance use

[edit]

Main article: Breastfeeding difficulties § Substance use

##### Alcohol

[edit]

See also: Alcohol and pregnancy

Moderate alcohol consumption by breastfeeding mothers can significantly affect infants. Even one or two drinks, including beer, may reduce milk intake by 20 to 23%, leading to increased agitation and poor sleep patterns. Regular heavy drinking (more than two drinks daily) can shorten breastfeeding duration and cause issues in infants, such as excessive sedation, fluid retention, and hormonal imbalances. Additionally, higher alcohol consumption may negatively impact children's academic achievement.[142]

When breastfeeding, alcohol may be consumed in moderation and does not require "Pumping-and-Dumping" (pumping and discarding breastmilk).[9]: 105–109 [143] Alcohol crosses from the blood to the breastmilk by diffusion. Thus, the concentration of alcohol in the breastmilk is approximately equal to the concentration in the maternal bloodstream at any given time.[9]: 105–109 [144] As the mother's liver processes the alcohol, more and more alcohol is pulled out of the breastmilk and back into the bloodstream.[9]: 105–109 Thus, it is suggested to wait 2 hours after drinking before nursing or pumping.[9]: 105–109 [145] In the case of infrequent binge drinking, it has been shown that infants consume through breastmilk only a fraction of the alcohol their mothers have ingested. While a minute, clinically insignificant amount of alcohol may be absorbed into the infant's bloodstream, it is unlikely that this amount would cause any noticeable cognitive or neuromotor effects.[144]

##### Marijuana

[edit]

The data on the use of marijuana during breastfeeding is limited, however, in part due to our lack of knowledge in this area, the CDC recommends against using marijuana or marijuana-containing products, including CBD, during breastfeeding.[146][147] The main active ingredient in marijuana, tetrahydrocannabinol (THC), can be found in breastmilk anywhere from six days to more than six weeks after marijuana use.[147] There is limited data on the long term effects of this exposure on the infant, however some studies have voiced concern regarding delayed motor development in infants exposed to THC.[147]

##### Tobacco

[edit]

Mothers who smoke or use other tobacco products can breastfeed their infants, according to La Leche League, the CDC, and the Royal Women's Hospital (Australia).[148][149][150] However, it is important to note that maternal tobacco use may decrease milk supply.[9]: 105–109 Additionally, tobacco smoking, regardless of feeding method, increases risk of SIDS and respiratory illnesses.[148][9]: 105–109 Thus, attempting to decrease tobacco use or even cease helps to minimize tobacco exposure to infants and maximize the benefits of breastfeeding.[9]: 105–109 Tobacco cessation products, such as nicotine patches and other medications, like bupropion, are able to be used by breastfeeding mothers.[9]: 105–109

##### Other recreational drugs

[edit]

Mothers utilizing recreational drugs, such as cocaine, methamphetamines, PCP, and heroin, should not breastfeed.[151][9]: 17

#### Medication use

[edit]

Most medications are compatible with continuing to breastfeed.[9]: 17 [9]: 105–109 Many medicines pass into breastmilk in small amounts, however, very few medications actually reach the infant and are absorbed in a way that would actually impact the infant.[9]: 105–109 Several characteristics of medications, including size and pH of the medication molecule and how well the medication is absorbed in the GI tract, influence how much of a medication may reach, and may ultimately be absorbed, by the infant.[9]: 105–109 In addition to the effects on the infant, many medications are known to significantly suppress milk production, including pseudoephedrine, diuretics, and contraceptives that contain estrogen.[152][9]: 105–109

There are several resources to assist medical professionals in determining which medications are safe for pregnancy and breastfeeding. While patients are able to use these resources as well, they are targeted toward medical professionals. Patients should be encouraged to consult a lactation specialist or a medical provider trained in breastfeeding medicine if any concerns arise. Two helpful resources are listed below.

1. LactMed @ NIH (Drugs and Lactation Database (LactMed))[153]
2. InfantRisk App (InfantRisk Center at Texas Tech University Health Sciences Center)[154]

##### Pumping-and-dumping

[edit]

"Pumping-and-dumping" is the concept of expressing breastmilk and discarding it due to a medication or substance "tainting" the breastmilk.[155] It was once believed that drinking alcohol or taking any medications, even medicines like ibuprofen, required pumping-and-dumping.[155] However, this is no longer the case. Pumping-and-dumping, or stopping breastfeeding altogether, is only required in very rare circumstances, such as with radioactive medications or chemotherapy.[156][9]: 105–109

If a parent is concerned with a possible milk contaminant, they can express and save the breastmilk until they are able to consult with a lactation specialist or another medical professional trained in breastfeeding medicine.

### Infantile contraindications

[edit]

#### Galactosemia

[edit]

Galactosemia is a metabolic disorder that prevents the infant from breaking down galactose, which is one of the two components of lactose, a type of sugar found in milk. Lactose is also found in breastmilk, so infants with galactosemia should not breastfeed.[157][9]: 15 [151]

## Methods

[edit]

Formula and pumped breastmilk side by side. Note that the formula is of uniform consistency and color, while the expressed breast milk exhibits properties of an organic solution by separating into a layer of fat at the top (the "creamline"), followed by the milk, and then a watery blue-colored layer at the bottom.

### Expressed milk

[edit]

Manual breast pump

A mother may express milk (remove milk from breasts) for storage and later use. Expression may occur manually with hand expression, or by using a breast pump.[39]: 220 [158]

Mothers express milk for multiple reasons. Expressing breast milk can maintain a mother's milk supply when mother and child are apart. A sick baby who is unable to nurse can take expressed milk through a nasogastric tube. Some babies are unable or unwilling to nurse. Maternal breastmilk is the food of choice for premature babies; these infants may be fed maternal milk through tubes, supplemental nursing systems, bottles, spoons or cups until they develop satisfactory ability to suck and swallow breast milk.[39]: 502–545 Some women donate expressed breast milk (EBM) to others, either directly or through a milk bank. This allows mothers who cannot breastfeed to give their baby the benefits of breast milk. While informally-shared breastmilk does carry the nutritional benefits of breastmilk, this breastmilk is most often not pasteurized or screened, and thus carries with it the risk of transmitting diseases or medications that are unsafe for infants.[159] Parents considering directed or informal milk sharing should discuss this option with their doctor, and they should be familiar with the donors medical history and milk handling practices.[159] Use of informally-shared (unscreened, not pasteurized) milk from an anonymous donor is discouraged by the Academy of Breastfeeding Medicine.[159]

Babies feed differently with artificial nipples than from a breast. With the breast, the infant's tongue massages the milk out rather than sucking, and the nipple does not go as far into the mouth. Drinking from a bottle takes less effort and the milk may come more rapidly, potentially causing the baby to lose desire for the breast. This is often referred to as nipple confusion or nipple preference.[39]: 241 While some infants do experience this preference for the bottle, many infants do not and will be able to alternate between bottle and breast without issue.[39]: 241

"Exclusively expressing" and "exclusively pumping" are terms for a mother who exclusively feeds a baby expressed milk. Exclusively pumping is poorly studied in the literature, especially in recent years. However, from available evidence, it appears to be fairly uncommon, with only approximately 7% of study participants reporting exclusive pumping.[160]

#### Storage of expressed breastmilk

[edit]

See also: Breastmilk storage and handling

Breastmilk may be stored for various amounts of time depending on storage temperature and conditions. The content and quality of expressed milk changes over time as it is stored, particularly when frozen.[158] For example, there is a decrease in the ability of breastmilk to kill bacteria when it is stored in the refrigerator for more than 48 hours.[158] Additionally, the quantity of fat, protein, and calories in breastmilk decreases when the milk is frozen for more than 3 months. While several components of breastmilk change over time, inflammatory factors (cytokines) and maternal antibodies, and growth factors are thought to be stable for at least 6 months when the breastmilk is frozen.[158] Storage guidelines, according to the CDC, La Leche League International and the Academy of Breastfeeding Medicine, are noted in the table below.

Storage of Expressed Breastmilk  Storage Location  | Optimal Storage Time  | Acceptable Storage Time  | Source

|
|
|

Countertop  | 4 hours  | 8 hours  | [161][158]
Insulated bag with icepack  | 24 hours  |  | [161][162]
Refrigerator  | 4 days  | 5 days  | [158][162][161]
Freezer compartment of minifridge  | 2 weeks  |  | [161]
Standard Freezer  | 6 months  | 12 months  | [158][162][161]
Deep Freezer (usually separate from refrigerator)  | 6–12 months  |  | [158][161]

#### Breastmilk storage containers

[edit]

See also: Breastmilk storage and handling

Expressed breastmilk can be stored in freezer storage bags, containers made specifically for breastmilk, a supplemental nursing system, or a bottle ready for use. Parents should avoid using storage containers which contain bisphenol A (BPA).[162] Additionally, use of polyethylene containers have been shown to decrease the immune benefits of breastmilk, including its ability to kill bacteria and the maternal antibodies it contains, by up to 60%.[158]

### Shared nursing

[edit]

Main article: Wet nurse

It is not only a mother who may breastfeed a child. Parents may hire another person to do so (a wet nurse), or may share childcare with another mother (cross-nursing). Both of these were common throughout history. It remains popular in some developing nations, including those in Africa, for more than one woman to breastfeed a child. Shared breastfeeding is a risk factor for HIV infection in infants.[163] Shared nursing can sometimes provoke negative social reactions in the English-speaking world.[164][165]

### Tandem nursing

[edit]

It is possible for a mother to continue breastfeeding an older sibling while also breastfeeding a new baby; this is called tandem nursing. During the late stages of pregnancy, the milk changes to colostrum. While some children continue to breastfeed even with this change, others may wean. Most mothers can produce enough milk for tandem nursing, but the new baby should be nursed first for at least the first few days after delivery to ensure that it receives enough colostrum.[166]

Breastfeeding triplets or larger broods is a challenge given babies' varying appetites. Breasts can respond to the demand and produce larger milk quantities; mothers have breastfed triplets successfully.[167][168][169]

* Newborn twins being breastfed

* Woman breastfeeds 2 year old twins whilst reading them a book.

* Woman tandem nurses an infant and a toddler.

### Re-lactation and induced lactation

[edit]

See also: Lactation § Without pregnancy, induced lactation, relactation

Re-lactation is the process of restarting breastfeeding.[170] In developing countries, mothers may restart breastfeeding after a weaning as part of an oral rehydration treatment for diarrhea. In developed countries, re-lactation is common after early medical problems are resolved, or because a mother changes her mind about breastfeeding.

Re-lactation is most easily accomplished with a newborn or with a baby that was previously breastfeeding; if the baby was initially bottle-fed, the baby may refuse to suckle. If the mother has recently stopped breastfeeding, chances are higher that the milk supply will return and be adequate. Although some mothers successfully re-lactate after months-long interruptions, success is higher for shorter interruptions.[170]

Techniques to promote lactation use frequent attempts to breastfeed, extensive skin-to-skin contact with the baby, and frequent, long pumping sessions.[170] Suckling may be encouraged with a tube filled with infant formula, so that the baby associates suckling at the breast with food. A dropper or syringe without the needle may be used to place milk onto the breast while the baby suckles. The mother should allow the infant to suckle at least ten times during 24 hours, and more times if the baby is interested. These times can include every two hours, whenever the baby seems interested, longer at each breast, and when the baby is sleepy when they might suckle more readily. In keeping with increasing contact between mother and child, including increasing skin-to-skin contact, grandmothers should pull back and help in other ways. Later on, grandmothers can again provide more direct care for the infant.[171]

These techniques require the mother's commitment over a period of weeks or months. However, even when lactation is established, the supply may not be large enough to breastfeed exclusively. A supportive social environment improves the likelihood of success.[170] As the mother's milk production increases, other feeding can decrease. Parents and other family members should watch the baby's weight gain and urine output to assess nutritional adequacy.[171]

A WHO manual for physicians and senior health workers citing a 1992 source states: "If a baby has been breastfeeding sometimes, the breastmilk supply increases in a few days. If a baby has stopped breastfeeding, it may take 1–2 weeks or more before much breastmilk comes."[171]

Induced lactation, also called adoptive lactation, is the process of starting breastfeeding in a woman who did not give birth.[170] This usually requires the adoptive mother to take hormones and other drugs to stimulate breast development and promote milk production. In some cultures, breastfeeding an adoptive child creates milk kinship that builds community bonds across class and other hierarchal bonds.[170]

## Health effects

[edit]

A mom using a baby carrier to support a feeding baby in Rio de Janeiro

Support for breastfeeding is universal among major health and children's organizations. WHO states, "Breast milk is the ideal food for the healthy growth and development of infants; breastfeeding is also an integral part of the reproductive process with important implications for the health of mothers."[172]

Breastfeeding is associated with a lowered risk of a number of diseases in both mothers and babies.[173] Comparing infants that were exclusively breastfed for at least 3 months with never-breastfed infants, the American Academy of Pediatrics reported that in the first year of life breastfed babies averaged about $400 in savings of health care costs.[174]

### Baby

[edit]

Early breastfeeding is associated with fewer nighttime feeding problems.[175] Early skin-to-skin contact between mother and baby improves breastfeeding outcomes and increases cardio-respiratory stability.[176] Some studies show that breastfeeding aids general health, growth and development in the infant. Infants who are not breastfed are at mildly increased risk of developing acute and chronic diseases, including lower respiratory infection, ear infections, bacteremia, bacterial meningitis, botulism, urinary tract infection and necrotizing enterocolitis.[177][178] Breastfeeding may protect against sudden infant death syndrome,[179] insulin-dependent diabetes mellitus, Crohn's disease, ulcerative colitis, childhood lymphoma, allergic diseases, digestive diseases,[56] obesity, or childhood leukemia later in life.[180] and may enhance cognitive development.[56][181] The CDC reports that infants who are breastfed have reduced risks of ear infections, obesity, type 1 diabetes, asthma, SIDS, and lower respiratory, and gastrointestinal infections.[182] It is hard however to distinguish the importance of breastfeeding per se and other correlated socioeconomic factors (breastfeeding is more frequent in richer families with higher educations). Comparing breastfed and non-breastfed siblings in a given family drastically decreases the association between breastfeeding and long-term child well-being.[37]

#### Growth

[edit]

The average breastfed baby doubles its birth weight in 5–6 months. By one year, a typical breastfed baby weighs about 2+1⁄2 times its birth weight. At one year, breastfed babies tend to be leaner than formula-fed babies, which improves long-run health.[183]

The Davis Area Research on Lactation, Infant Nutrition and Growth (DARLING) study reported that breastfed and formula-fed groups had similar weight gain during the first 3 months, but the breastfed babies began to drop below the median beginning at 6 to 8 months and were significantly lower weight than the formula-fed group between 6 and 18 months. Length gain and head circumference values were similar between groups, suggesting that the breastfed babies were leaner.[184]

#### Infections

[edit]

Main article: Human milk immunity

Breast milk contains several anti-infective factors such as bile salt stimulated lipase (protecting against amoebic infections) and lactoferrin (which binds to iron and inhibits the growth of intestinal bacteria).[185][186]

Exclusive breastfeeding until six months of age helps to protect an infant from gastrointestinal infections in both developing and industrialized countries. The risk of death due to diarrhea and other infections increases when babies are either partially breastfed or not breastfed at all.[3] Infants who are exclusively breastfed for the first six months are less likely to die of gastrointestinal infections than infants who switched from exclusive to partial breastfeeding at three to four months.[5]

During breastfeeding, approximately 0.25–0.5 grams per day of secretory IgA antibodies pass to the baby via milk.[187][188] This is one of the important features of colostrum.[189] The main target for these antibodies are probably microorganisms in the baby's intestine. The rest of the body displays some uptake of IgA,[190] but this amount is relatively small.[191]

Maternal vaccinations while breastfeeding is safe for almost all vaccines. Additionally, the mother's immunity obtained by vaccination against tetanus, diphtheria, whooping cough and influenza can protect the baby from these diseases, and breastfeeding can reduce fever rate after infant immunization. However, smallpox and yellow fever vaccines increase the risk of infants developing vaccinia and encephalitis.[192][193]

Several studies have suggested that breast milk can pass antibodies to the infant for as long as the child continues to nurse. The antibodies may be in the mother's system as a result of being ill or they may be acquired by drinking milk from a mother who has recently been vaccinated for a particular disease. One small study done on nursing mothers who had received the COVID-19 vaccine found that breastmilk continued to contain antibodies for as long as 80 days after receiving the vaccine.[194]

#### Mortality

[edit]

The World Health Organization reports that babies who receive no breast milk are almost six times more likely to die by the age of one month than those who are partially or fully breastfed. Access to healthcare is the single critical determinant of survival or death for the infant.[195]

#### Childhood obesity

[edit]

Main article: Childhood obesity

The protective effect of breastfeeding against obesity is consistent, though small, across many studies.[177][178][196] A 2013 longitudinal study reported less obesity at ages two and four years among infants who were breastfed for at least four months.[197]

#### Allergic diseases

[edit]

In children who are at risk for developing allergic diseases (defined as at least one parent or sibling having atopy), atopic syndrome can be prevented or delayed through 4-month exclusive breastfeeding, though these benefits may not persist.[198]

#### Backwash effect

[edit]

The backwash effect in breastfeeding refers to the process where an infant's saliva flows back into the mother's breast during nursing. This backward flow may introduce the baby's saliva into the mammary gland, potentially prompting the mother's body to produce tailored immune responses in her breast milk to meet the infant's specific needs.[199][200]

#### Other health effects

[edit]

Breastfeeding may reduce the risk of necrotizing enterocolitis (NEC) in premature babies.[178]

Breastfeeding or introduction of gluten while breastfeeding does not protect against celiac disease among at-risk children. Breast milk of healthy human mothers who eat gluten-containing foods presents high levels of non-degraded gliadin (the main gluten protein). Early introduction of traces of gluten in babies to potentially induce tolerance does not reduce the risk of developing celiac disease. Delaying the introduction of gluten does not prevent, but is associated with a delayed onset of the disease.[201][202]

About 14 to 19 percent of leukemia cases may be prevented by breastfeeding for six months or longer.[203] However, breastfeeding is also the primary cause of adult T-cell leukemia/lymphoma, as the HTLV-1 virus is transmitted through breastmilk.[204]

Breastfeeding is associated with a lower chance of developing diabetes mellitus type 1 in the offspring.[178] Breastfed babies also appear to have a lower likelihood of developing diabetes mellitus type 2 later in life.[177][178][205]

Breastfeeding may decrease the risk of cardiovascular disease in later life, as indicated by lower cholesterol and C-reactive protein levels in breastfed adult women.[177] Breastfed infants have somewhat lower blood pressure later in life, but it is unclear how much practical benefit this provides.[177][178]

A 1998 study suggested that breastfed babies have a better chance of good dental health than formula-fed infants because of the developmental effects of breastfeeding on the oral cavity and airway. It was thought that with fewer malocclusions, breastfed children may have a reduced need for orthodontic intervention. The report suggested that children with a well rounded, "U-shaped" dental arch, which is found more commonly in breastfed children, may have fewer problems with snoring and sleep apnea in later life.[206] A 2016 review found that breastfeeding protected against malocclusions.[8]

Breastfeeding duration has been correlated with child maltreatment outcomes, including neglect and sexual abuse.[207]

#### Intelligence

[edit]

It is unclear whether breastfeeding improves intelligence later in life. Several studies found no relationship after controlling for confounding factors like maternal intelligence (smarter mothers were more likely to breastfeed their babies).[178][208] However, other studies concluded that breastfeeding was associated with increased cognitive development in childhood, although the cause may be increased mother–child interaction rather than nutrition.[177][209]

### Mother

[edit]

#### Maternal bond

[edit]

Oxytocin, a hormone released during breastfeeding, may play a role in maternal-infant attachment and bonding, potentially via decreased anxiety and stress.[210]

#### Fertility

[edit]

Main article: Lactational amenorrhea

Exclusive breastfeeding usually delays the return of fertility through lactational amenorrhea,[211][212] although it does not provide reliable birth control. Breastfeeding may delay the return to fertility for some women by suppressing ovulation. Mothers may not ovulate, or have regular periods, during the entire lactation period. The non-ovulating period varies by individual. This has been used as natural contraception, with greater than 98% effectiveness during the first six months after birth if specific nursing behaviors are followed.[213]

#### Postpartum bleeding

[edit]

During the third stage of labor, the time between the delivery of the baby and the passage of the placenta, and the fourth, the final stage of birth, excessive blood loss can endanger the life of the mother. When the newborn nurses the mother secretes oxytocin which causes the uterus to cramp and reduce blood loss. Nursing also causes the uterus to cramp for a number of days postpartum, helping it to return to its pre-pregnancy size. Some women report moderate to severe pain, especially women who have given birth several times, during a nursing session for the first few days following delivery.[214][215]

#### Weight retention

[edit]

It is unclear whether breastfeeding causes mothers to lose weight after giving birth.[211][216][217][218] The National Institutes of Health states that it may help with weight loss.[219]

#### Chronic conditions

[edit]

Breastfeeding is also associated with a lower risk of type 2 diabetes among mothers who practice it.[220] Longer duration of breastfeeding is associated with reduced risk of hypertension.[218]

For breastfeeding women, long-term health benefits include reduced risk of breast cancer, ovarian cancer, and endometrial cancer.[211][221] According to the American Heart Association, breastfeeding also reduces the risk of maternal heart disease and stroke.[222]

A 2011 review found it unclear whether breastfeeding affects the risk of postpartum depression.[223] Later reviews have found tentative evidence of a lower risk among mothers who successfully breastfeed, though it is unknown whether breastfeeding decreases depression, or whether depression decreases breastfeeding.[224][225]

#### Dysphoric milk ejection reflex

[edit]

Main article: Dysphoric milk ejection reflex

Dysphoric milk ejection reflex (D-MER) is a condition in which breastfeeding women develop negative emotions that begin just before the milk letdown reflex and last less than a few minutes. It may recur with every letdown, including unexpected letdowns when the baby is not feeding. It presents as an emotional reaction but may also produce physical feelings such as nausea. It is different from postpartum depression and other known psychological conditions. A 2019 study reported a prevalence rate of 9.1%. As off 2021, very little research has been done and many health care providers and lactation practitioners remain barely able to recognize the syndrome. An October 2021 review of literature published to that date suggested that the lack of up-to-date information "makes it necessary to educate mothers because educated mothers are usually better at handling postpartum situations if they are prepared in advance." There is as yet no medication to treat the symptoms although women have reported that they have found it of benefit to learn that they are not alone and that the symptoms were not "just in their head".[226][227][228]

## Social factors

[edit]

Main article: Breastfeeding difficulties

The majority of mothers intend to breastfeed at birth. Many factors can disrupt this intent. Research done in the US shows that information about breastfeeding is rarely provided by a women's obstetricians during their prenatal visits and some health professionals incorrectly believe that commercially prepared formula is nutritionally equivalent to breast milk.[229] Many hospitals have instituted practices that encourage breastfeeding, however a 2012 survey in the US found that 24% of maternity services were still providing supplements of commercial infant formula as a general practice in the first 48 hours after birth.[4] The Surgeon General's Call to Action to Support Breastfeeding attempts to educate practitioners.[230]

### Social support

[edit]

See also: Postpartum confinement

A review found that when effective forms of support are offered to women, exclusive breastfeeding and duration of breastfeeding are increased. Characteristics of effective support includes ongoing, face-to-face support tailored to fit their needs. It may be offered by lay/peer supporters, professional supporters, or a combination of both.[231] This review contrasts with another large review that looked at education programs alone, which found no conclusive evidence of initiation of breastfeeding or the proportion of women breastfeeding either exclusively or partially at 3 months and 6 months.[232]

Positive social support in essential relationships of new mothers plays a central role in the promotion of breastfeeding outside of the confines of medical centers. Social support can come in many incarnations, including tangible, affectionate, social interaction, and emotional and informational support. An increase in these capacities of support has shown to greatly positively effect breastfeeding rates, especially among women with education below a high school level.[233] Some mothers that have used lactation rooms have taken to leaving sticky notes to not only thank the businesses that have provided them but to support, encourage, and praise the nursing moms who use them.[234]

In the social circles surrounding the mother, support is most crucial from the male partner, the mother's mother, and her family and friends.[235] Research has shown that the closest relationships to the mother have the strongest impact on breastfeeding rates, while negative perspectives on breastfeeding from close relatives hinder its prevalence.[233]

* Mother – Adolescence is a risk factor for low breastfeeding rates, although classes, books and personal counseling (professional or lay) can help compensate.[236] Some women fear that breastfeeding will negatively impact the look of their breasts. However, a 2008 study found that breastfeeding had no effect on the breasts; other factors did contribute to "drooping" of the breasts, such as advanced age, number of pregnancies and smoking behavior.[237]
* Partner – Partners may lack knowledge of breastfeeding and their role in the practice.
* Wet nursing – Social and cultural attitudes towards breastfeeding in the African-American community are also influenced by the legacy of forced wet-nursing during slavery.[238]

#### Maternity leave

[edit]

Work is the most commonly cited reason for not breastfeeding.[239] In 2012 Save the Children examined maternity leave laws, ranking 36 industrialized countries according to their support for breastfeeding. Norway ranked first, while the United States came in last.[240] Maternity leave in the US varies widely, including by state. The United States does not mandate paid maternity leave for any employee however the Family Medical Leave Act (FMLA) guarantees qualifying mothers up to 12 weeks unpaid leave although the majority of US mothers resume work earlier. A large 2011 study found that women who returned to work at or after 13 weeks after childbirth were more likely to predominantly breastfeed beyond three months.[241]

### Healthcare

[edit]

#### Caesarean section

[edit]

Women are less likely to start breastfeeding after caesarean delivery compared with vaginal delivery.[242][243]

#### Breast surgery

[edit]

Breastfeeding can generally be attempted after breast augmentation or reduction surgery,[244] however prior breast surgery is a risk factor for low milk supply.[245]

A 2014 review found that women who have breast implant surgery were less likely to exclusively breast feed, however it was based on only three small studies and the reasons for the correlation were not clear.[246] A large follow-up study done in 2014 found a reduced rate of breastfeeding in women who had undergone breast augmentation surgery, however again the reasons were unclear. The authors suggested that women contemplating augmentation should be provided with information related to the rates of successful breastfeeding as part of informed decision making when contemplating surgery.[247]

Prior breast reduction surgery is strongly associated with an increased probability of low milk supply due to disruption to tissues and nerves.[248] Some surgical techniques for breast reduction appear to be more successful than others in preserving the tissues that generate and channel milk to the nipple. A 2017 review found that women were more likely to have success with breastfeeding with these techniques.[249]

#### Medications

[edit]

Breastfeeding mothers should inform their healthcare provider about all of the medications they are taking, including herbal products. Nursing mothers may be immunized and may take most over-the-counter drugs and prescription drugs without risk to the baby but certain drugs, including some painkillers and some psychiatric drugs, may pose a risk.[250]

The US National Library of Medicine publishes "LactMed," an up-to-date online database of information on drugs and lactation. Geared to both healthcare practitioners and nursing mothers, LactMed contains over 450 drug records with information such as potential drug effects and alternative drugs to consider.[193][251]

Some substances in the mother's food and drink are passed to the baby through breast milk, including mercury (found in some carnivorous fish),[252] caffeine,[253] and bisphenol A.[254][255]

#### Medical conditions

[edit]

Undiagnosed maternal celiac disease may cause a short duration of the breastfeeding period. Treatment with the gluten-free diet can increase its duration and restore it to the average value of the healthy women.[256]

Mothers with all types of diabetes mellitus normally use insulin to control their blood sugar, as the safety of other antidiabetic drugs while breastfeeding is unknown.[257]

Women with polycystic ovary syndrome, which is associated with some hormonal differences and obesity, may have greater difficulty with producing a sufficient supply to support exclusive breastfeeding, especially during the first weeks.[258]

### Ethnicity and socioeconomic status

[edit]

The rates of breastfeeding in the African-American community remain much lower than any other race, for a variety of proposed reasons. These include the legacy of wet nursing during slavery, higher rates of poor perinatal health, higher stress levels, less access to support, and less flexibility in the workplace.[259] While for other races as socio-economic class raises rates of breastfeeding also go up, for the African-American community breastfeeding rates remain consistently low regardless of socio-economic class.[260]

There are also racial disparities in access to maternity care practices that support breastfeeding. In the US, primarily African-American neighborhoods are more likely to have facilities (such as hospitals and female healthcare clinics) that do not support breastfeeding, contributing to the low rate of breastfeeding in the African-American community. Comparing facilities in primarily African American neighborhoods to ones in primarily European-American neighborhoods, the rates of practices that support or discourage breastfeeding were: limited use of supplements (13.1% compared with 25.8%) and rooming-in (27.7–39.4%)[261]

Low-income mothers are more likely to have unintended pregnancies.[262] Mothers whose pregnancies are unintended are less likely to breastfeed.[263]

Especially the combination of powdered formula with unclean water can be very harmful to the health of babies. In the late 1970s, there was a boycott against Nestle due to the great number of baby deaths due to formula. Dr. Michele Barry explains that breastfeeding is most imperative in poverty environments due to the lack of access of clean water for the formula. A Lancet study in 2016 found that universal breastfeeding would prevent the deaths of 800,000 children as well as save $300,000,000.[264]

### Social acceptance

[edit]

Main article: Breastfeeding in public

Sign for a private nursing area at a museum using the international breastfeeding symbol

Some women feel discomfort when breastfeeding in public.[265] Public breastfeeding may be forbidden in some places, not addressed by law in others, and a legal right in others. Even given a legal right, some mothers are reluctant to breastfeed,[266][267] while others may object to the practice.[268]

The use of infant formula was thought to be a way for western culture to adapt to negative perceptions of breastfeeding.[269] The breast pump offered a way for mothers to supply breast milk with most of formula feeding's convenience and without enduring possible disapproval of nursing.[270] Some may object to breastfeeding because of the implicit association between infant feeding and sex.[271] These negative cultural connotations may reduce breastfeeding duration.[266][272][273][274] Maternal guilt and shame is often affected by how a mother feeds an infant. These emotions occur in both bottle- and breast- feeding mothers, although for different reasons. Bottle feeding mothers may feel that they should be breastfeeding.[275] Conversely, breastfeeding mothers may feel forced to feed in uncomfortable circumstances. Some may see breastfeeding as, "indecent, disgusting, animalistic, sexual, and even possibly a perverse act."[276] Advocates (known by the neologism "lactivists") use "nurse-ins" to show support for breastfeeding in public.[265] One study that approached the subject from a feminist viewpoint suggested that both nursing and non-nursing mothers often feel maternal guilt and shame with formula feeding mothers feeling that they are not living up to the ideals of motherhood and nursing mothers concerned that they are transgressing "cultural expectations regarding feminine modesty." The authors advocate that women be provided with education on breastfeeding's benefits as well as problem-solving skills,[275] however there is no conclusive evidence that breastfeeding education alone improves initiation of breastfeeding or the proportion of women breastfeeding either exclusively or partially at 3 months and 6 months.[232]

### Location

[edit]

The examples and perspective in this section deal primarily with the United States and the United Kingdom and do not represent a worldwide view of the subject. You may improve this section, discuss the issue on the talk page, or create a new section, as appropriate. (December 2024) (Learn how and when to remove this message)

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In the United States, all fifty states, along with the District of Columbia, Puerto Rico and the U.S. Virgin Islands, have laws that allow a mother to breastfeed a baby in any public or private location.[277] In that country, the Friendly Airports for Mothers (FAM) Act was signed into law in 2019, and the requirements went into effects in 2021. This law requires that all large and medium hub airports in the U.S. provide a private, non-bathroom lactation space in each terminal building.[278]

Some commercial establishments in the U.S. provide breastfeeding rooms, although laws generally specify that mothers may breastfeed anywhere without requiring a special area. Despite these laws, many women in the United States continue to be publicly shamed or asked to refrain from breastfeeding in public.[279] In the United Kingdom, the Equality Act 2010 makes the prevention of breastfeeding in any public place discrimination under the law.[280] In Scotland, it is a criminal offense for one to attempt to prevent another from feeding a child under 24 months in public.[280]

While laws in the U.S. were passed in 2010 which required that nursing mothers who had returned to work be given a non-bathroom space to express milk and a reasonable break time to do so, as of 2016 the majority of American women still did not have access to both accommodations.[281]

In 2014, newly elected Pope Francis drew worldwide commentary when he encouraged mothers to breastfeed babies in church. During a papal baptism, he said that mothers "should not stand on ceremony" if their children were hungry. "If they are hungry, mothers, feed them, without thinking twice," he said, smiling. "Because they are the most important people here."[282]

## Prevalence

[edit]

Percentage of babies exclusively breastfed for the first six months of life. Data from 2004 to 2011.[283] Percentage of US infants breastfeeding by month since birth in 2008.
Dotted line: Exclusive breastfeeding
Dashed line Any breastfeeding
* Estimated at 7 days after birth

Globally, about 38% of babies are exclusively breastfed during their first six months of life.[3] In the United States, the rate of women beginning to breastfeed was 76% in 2009 increasing to 83% in 2015 with 58% still breastfeeding at 6 months, although only 25% were still breastfeeding exclusively.[284] African-American women have persistently low rates of breastfeeding compared to White and Hispanic American women. In 2014, 58.1% of African-American women breastfeed in the early postpartum period, compared to 77.7% of White women and 80.6% of Hispanic women.[260] In 2019, 84.1% of U.S women giving birth initiated breastfeeding, with 87.4%, 85.5%, 73.6%, 90.3% and 83.1% of Hispanic, White, African-American, Asian and Multiracial mothers initiating, respectively. Rates of initiation among African-American mothers varied widely by state, with lows under 53% and highs over 90%.[285]

Breastfeeding rates in different parts of China vary considerably.[286]

Rates in the United Kingdom were the lowest in the world in 2015 with only 0.5% of mothers still breastfeeding at a year, while in Germany 23% are doing so, 56% in Brazil and 99% in Senegal.[287]

In Australia, for children born in 2004, more than 90% were initially breastfed.[288] In Canada for children born in 2005–06, more than 50% were only breastfed and more than 15% received both breastmilk and other liquids, by the age of 3 months.[289]

## History

[edit]

Main article: History and culture of breastfeeding

See also: Wet nurse

In the Egyptian, Greek and Roman Empires, women usually fed only their own children.[citation needed] However, breastfeeding began to be seen as something too common to be done by royalty, and wet nurses were employed to breastfeed the children of the royal families. This extended over time, particularly in western Europe, where noble women often made use of wet nurses. Lower-class women breastfed their infants and used a wet nurse only if they were unable to feed their own infant. Attempts were made in 15th-century Europe to use cow or goat milk, but these attempts were not successful. In the 18th century, flour or cereal mixed with broth were introduced as substitutes for breastfeeding, but this provided inadequate nutrition.[citation needed] The appearance of improved infant formulas in the mid 19th century and its increased use caused a decrease in breastfeeding rates, which accelerated after World War II, and for some in the US, Canada, and UK, breastfeeding was seen as uncultured. From the 1960s onwards, breastfeeding experienced a revival which continued into the 2000s, though negative attitudes towards the practice were still entrenched in some countries up to the 1990s.[290]

## Society and culture

[edit]

Macierzyństwo ("Maternity"), a 1902 painting by Stanisław Wyspiański

### Financial considerations

[edit]

Breastfeeding is less costly than alternatives, but the mother generally must eat more food than would otherwise be necessary. In the US, the extra money spent on food (about US $17 each week) is usually about half as much money as the cost of infant formula.[11] According to the CDC, breastfeeding mothers need an extra 450 to 500 calories per day compared to their pre-pregnancy caloric intake.[291]

Breastfeeding reduces health care costs and the cost of caring for sick babies. Parents of breastfed babies are less likely to miss work and lose income because their babies are sick.[11] Looking at three of the most common infant illnesses, lower respiratory tract illnesses, otitis media, and gastrointestinal illness, one study compared infants that had been exclusively breastfed for at least three months to those who had not. It found that in the first year of life there were 2033 excess office visits, 212 excess days of hospitalization, and 609 excess prescriptions for these three illnesses per 1000 never-breastfed infants compared with 1000 infants exclusively breastfed for at least 3 months.[292][293] However, in a study of over 140,000 newborns in the first month of life, exclusively breastfed newborns had higher hospital readmission rates than those exclusively formula fed, and those exclusively breastfed also had more neonatal outpatient visits compared to those exclusively formula fed.[294]

### Criticism of breastfeeding advocacy

[edit]

"See It", a project by Fiann Paul dedicated to promoting awareness of breastfeeding in Reykjavík, Iceland, in 2011[295]

There are controversies and ethical considerations surrounding the means used by public campaigns which attempt to increase breastfeeding rates, relating to pressure put on women, and potential feeling of guilt and shame of women who fail to breastfeed; and social condemnation of women who use formula.[296][297][298][299] In addition to this, there is also the moral question as to what degree the state or medical community can interfere with a person's self-determination: for example in the United Arab Emirates the law requires women to breastfeed babies for at least 2 years and allows husbands to sue them if they do not.[300][301]

It is widely assumed that if women's healthcare providers encourage them to breastfeed, those who choose not to will experience more guilt. Evidence does not support this assumption. On the contrary, a study on the effects of prenatal breastfeeding counselling found that those who had received such counselling and chosen to formula-feed denied experiencing feelings of guilt. Women were equally comfortable with their subsequent choices for feeding their infant regardless of whether they had received encouragement to breastfeed.[302]

Preventing a situation where women are denied agency and/or stigmatized for formula use is also seen as important. In 2018, in the UK, a policy statement from the Royal College of Midwives said that women should be supported and not stigmatized, if after being given advice and information, they choose to formula feed.[303]

### Social marketing

[edit]

Social marketing is a marketing approach intended to change people's behavior to benefit both individuals and society.[304] When applied to breastfeeding promotion, social marketing works to provide positive messages and images of breastfeeding to increase visibility. Social marketing in the context of breastfeeding has shown efficacy in media campaigns.[305][306][307][308][309][310] Some oppose the marketing of infant formula, especially in developing countries. They are concerned that mothers who use formula will stop breastfeeding and become dependent upon substitutes that are unaffordable or less safe.[311][312] Through efforts including the Nestlé boycott, they have advocated for bans on free samples of infant formula and for the adoption of pro-breastfeeding codes such as the International Code of Marketing of Breast-milk Substitutes by the World Health Assembly in 1981 and the Innocenti Declaration by WHO and UNICEF policy-makers in August 1990.[311] Additionally, formula companies have spent millions internationally on campaigns to promote the use of formula as an alternative to mother's milk.[313] Giving out gift bags that contain infant formula to women as they leave the hospital is also a marketing strategy. The U.S. Government Accountability Office has reported that women who receive formula samples at discharge are associated with lower breastfeeding rates than those who did not receive gift bags.[314]

### Baby Friendly Hospital Initiative

[edit]

Main article: Baby Friendly Hospital Initiative

The Baby Friendly Hospital Initiative (BFHI) is a program launched by the World Health Organization (WHO) in conjunction with UNICEF in order to promote infant feeding and maternal bonding through certified hospitals and birthing centers. BFHI was developed as a response to the influence held by formula companies in private and public maternal health care. The initiative has two core tenets: the Ten Steps to Successful Breastfeeding and the International Code of Marketing of Breast-milk Substitutes.[315] The BFHI has especially targeted hospitals and birthing centers in the developing world, as these facilities are most at risk to the detrimental effects of reduced breastfeeding rates. As of 2018, 530 hospitals in the United States hold the "Baby-Friendly" title in all 50 states. Globally, there are more than 20,000 "Baby-Friendly" hospitals worldwide in over 150 countries.[316]

### Representation on television

[edit]

The first depiction of breastfeeding on television was in the children's program Sesame Street, in 1977.[317] With few exceptions since that time, breastfeeding on television has either been portrayed as strange, disgusting, or a source of comedy, or it has been omitted entirely in favor of bottle feeding.[317]

### Religion

[edit]

Ilkhanate prince Ghazan being breastfed

See also: Milk kinship and Mahram

In some cultures, people who have been breastfed by the same woman are milk-siblings who are equal in legal and social standing to a consanguineous sibling.[318] Islam has a complex system of rules regarding this, known as Rada (fiqh). Like the Christian practice of godparenting, milk kinship established a second family that could take responsibility for a child whose biological parents came to harm. "Milk kinship in Islam thus appears to be a culturally distinctive, but by no means unique, institutional form of adoptive kinship."[319]

In Western countries, differences in breastfeeding practices have also been observed according to the affiliation or practice of Christian religions; unaffiliated and Protestant women exhibit higher rates of breastfeeding.[320][321][322][323]

## Workplace

[edit]

The International breastfeeding symbol

Many mothers have to return to work a short time after their babies have been born.[324] In the U.S. about 70% of mothers with children younger than three years old work full-time with 1/3 of the mothers returning to work within 3 months and 2/3 returning within 6 months. Working outside of the home and full-time work are significantly associated with lower rates of breastfeeding and breastfeeding for a shorter duration of time.[325] According to the Centers for Disease Control and Prevention, support for breastfeeding in the workplace includes several types of employee benefits and services, including writing corporate policies to support breastfeeding women; teaching employees about breastfeeding; providing designated private space for breastfeeding or expressing milk; allowing flextime to support milk expression during work; giving mothers options for returning to work, such as remote work, part-time jobs, and extended maternity leave; providing on-site or near-site child care; providing high-quality breast pumps; and offering professional lactation consultants.[325]

Programs to promote and assist nursing mothers have been found to help maintain breastfeeding.[326] In the United States the CDC reports on a study that "examined the effect of corporate lactation programs on breastfeeding behavior among employed women in California [which] included prenatal classes, perinatal counseling, and lactation management after the return to work". They found that "about 75% of mothers in the lactation programs continued breastfeeding at least 6 months, although nationally only 10% of mothers employed full-time who initiated breastfeeding were still breastfeeding at 6 months."[325]

Section 4207 of the United States' Patient Protection and Affordable Care Act (2010) amended the Fair Labor Standards Act and required employers to provide a reasonable break time for an hourly employee to breastfeed a child if the child is less than one year old.[327][328] The employee must be allowed to breastfeed in a private place, other than a bathroom. The employer is not required to pay the employee during the break time.[328] Employers with fewer than 50 employees are not required to comply with the law if doing so would impose an undue hardship to the employer based on its size, finances, nature, or structure of its business.[329]

A 2016 study found: "1) federal law does not address lactation space functionality and accessibility, 2) federal law only protects a subset of employees, and 3) enforcement of the federal law requires women to file a complaint with the United States Department of Labor. To address each of these issues, we recommend the following modifications to current law: 1) additional requirements surrounding lactation space and functionality, 2) mandated coverage of exempt employees, and 3) requirement that employers develop company-specific lactation policies."[281] As of 2019 the majority of women still did not have access to both accommodations. Working mother advocate and Entrepreneur writer Christine Michel Carter documented her experience pumping in a bathroom while working for an employer violating the Fair Labor Standards Act.[330]

In 2022 the Providing Urgent Maternal Protections for Nursing Mothers Act, also known as the PUMP Act, became law in the United States. It mandates that salaried workers who are breastfeeding must have break time and a private space that is not a bathroom. However, employers who do not have 50 or more employees do not have to follow this law if following it would create an undue hardship because of expense or difficulty.[331][327]

In Canada, British Columbia and Ontario, provincial Human Rights Codes prevent against workplace discrimination due to breastfeeding.[332][333] In British Columbia, employers are required to provide accommodation to employees who breastfeed or express breast milk. Although no specific requirements are mandated, under the Human Rights Code, accommodations suggested include paid breaks (not including meal breaks), private facilities that include clean running water, comfortable seating areas, and refrigeration equipment, as well as flexibility in terms of work-related conflicts.[332] In Ontario, employers are encouraged to accommodate breastfeeding employees by providing additional breaks without fear of discrimination. Unlike in British Columbia, the Ontario Code does not include specific recommendations, and therefore leaves significant flexibility for employers.[334]

## Research

[edit]

Breastfeeding research continues to assess prevalence, HIV transmission, pharmacology, costs, benefits, immunology, contraindications, and comparisons to synthetic breast milk substitutes.[5][335] Factors related to the mental health of the nursing mother in the perinatal period have been studied. While cognitive behavior therapy may be the treatment of choice, medications are sometimes used. The use of therapy rather than medication reduces the infant's exposure to medication that may be transmitted through the milk.[336] In coordination with institutional organisms, researchers are also studying the social impact of breastfeeding throughout history. Accordingly, strategies have been developed to foster the increase of the breastfeeding rates in the different countries.[337]

## See also

[edit]

* Baby-led weaning
* Breast shell
* Breastfeeding in public
* Breastfeeding promotion
* Child development
* Dairy allergy
* Breastfeeding and fertility
* Lactation failure (disambiguation)
* Lactation room
* Milk line
* Nursing chair
* Public health
* World Alliance for Breastfeeding Action
* Breastfeeding and mental health
* Breastmilk storage and handling

## References

[edit]

1. ^ a b "Breastfeeding and Breast Milk: Condition Information". National Institute of Child Health and Human Development. National Institutes of Health (NIH), U.S. Department of Health and Human Services. 19 December 2013. Archived from the original on 27 July 2015. Retrieved 27 July 2015.
2. ^ "Infant and young child feeding Fact sheet N°342". WHO. February 2014. Archived from the original on 8 February 2015. Retrieved 8 February 2015.
3. ^ a b c d e f g h i j "Infant and young child feeding Fact sheet N°342". World Health Organization (WHO). 9 June 2021. Archived from the original on 8 February 2015. Retrieved 8 February 2015.
4. ^ a b c d e f g h i j k l m Johnston M, Landers S, Noble L, Szucs K, Viehmann L, et al. (Section on Breastfeeding) (March 2012). "Breastfeeding and the use of human milk". Pediatrics. 129 (3): e827–e841. doi:10.1542/peds.2011-3552. PMID 22371471. S2CID 5791615. Archived from the original on 5 August 2015.
5. ^ a b c Kramer MS, Kakuma R (August 2012). "Optimal duration of exclusive breastfeeding". The Cochrane Database of Systematic Reviews. 2012 (8): CD003517. doi:10.1002/14651858.CD003517.pub2. PMC 7154583. PMID 22895934.
6. ^ "Breastfeeding".
7. ^ Ip S, Chung M, Raman G, Trikalinos TA, Lau J (October 2009). "A summary of the Agency for Healthcare Research and Quality's evidence report on breastfeeding in developed countries". Breastfeeding Medicine. 4 (Suppl 1): S17–S30. doi:10.1089/bfm.2009.0050. PMID 19827919.
8. ^ a b c d Victora CG, Bahl R, Barros AJ, França GV, Horton S, Krasevec J, et al. (January 2016). "Breastfeeding in the 21st century: epidemiology, mechanisms, and lifelong effect". Lancet. 387 (10017): 475–490. doi:10.1016/s0140-6736(15)01024-7. hdl:10072/413175. PMID 26869575. S2CID 24126039.
9. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj ak al am an ao ap aq ar as at au av aw ax ay az ba bb bc bd be bf bg bh bi bj bk bl bm bn bo bp bq br bs bt bu bv bw bx by bz ca cb cc cd ce cf cg ch ci cj ck cl cm cn co cp cq cr cs ct cu cv cw cx cy cz da db dc dd de df dg dh di dj dk Eglash A, Leeper K (2020). The Little Green Book of Breastfeeding Management for Physicians & Other Healthcare Providers (7 ed.). Madison, WI: The Institute for the Advancement of Breastfeeding and Lactation Education. ISBN 978-0-9987789-0-7.
10. ^ Lawrence RA, Lawrence RM (1 January 2011). Breastfeeding: A Guide for the Medical Profession. Elsevier Health Sciences. pp. 227–228. ISBN 978-1-4377-0788-5.
11. ^ a b c "Breastfeeding and the use of human milk. American Academy of Pediatrics. Work Group on Breastfeeding". Pediatrics. 100 (6): 1035–1039. December 1997. doi:10.1542/peds.100.6.1035. PMID 9411381. S2CID 81585356. Archived from the original on 23 October 2012.
12. ^ "What are the benefits of breastfeeding?". 14 April 2014. Archived from the original on 10 August 2015. Retrieved 27 July 2015.
13. ^ Momigliano A (21 May 2019). "Breast-feeding isn't free. This is how much it really costs". Washington Post. Retrieved 11 March 2021.
14. ^ "What is weaning and how do I do it?". 19 December 2013. Archived from the original on 8 July 2015. Retrieved 27 July 2015.
15. ^ Amir LH (June 2014). "ABM clinical protocol #4: Mastitis, revised March 2014". Breastfeeding Medicine. 9 (5): 239–243. doi:10.1089/bfm.2014.9984. PMC 4048576. PMID 24911394.
16. ^ a b c d e Berens P, Brodribb W (May 2016). "ABM Clinical Protocol #20: Engorgement, Revised 2016". Breastfeeding Medicine. 11 (4): 159–163. doi:10.1089/bfm.2016.29008.pjb. PMC 4860650. PMID 27070206.
17. ^ "Agencies encourage women to continue to breastfeed during the COVID-19 pandemic". World Health Organization. Retrieved 8 March 2021.
18. ^ "Breastfeeding and alcohol". NHS Choices. NHS. 21 December 2017. Archived from the original on 1 August 2016.
19. ^ "Breastfeeding and diet". NHS Choices. NHS. 26 March 2018. Archived from the original on 7 August 2016.
20. ^ "Tobacco Use | Breastfeeding | CDC". www.cdc.gov. 21 March 2018. Archived from the original on 9 August 2016. Retrieved 4 August 2016.
21. ^ a b c d e Brodribb W (June 2018). "ABM Clinical Protocol #9: Use of Galactogogues in Initiating or Augmenting Maternal Milk Production, Second Revision 2018". Breastfeeding Medicine. 13 (5): 307–314. doi:10.1089/bfm.2018.29092.wjb. PMID 29902083. S2CID 49211760.
22. ^ Napso T, Yong HE, Lopez-Tello J, Sferruzzi-Perri AN (2018). "The Role of Placental Hormones in Mediating Maternal Adaptations to Support Pregnancy and Lactation". Frontiers in Physiology. 9: 1091. doi:10.3389/fphys.2018.01091. PMC 6108594. PMID 30174608.
23. ^ Hale TW, Hartmann PE, Czank C, Henderson J, Kent JC, Lai CT (2007). Hale & Hartmann's textbook of human lactation (1 ed.). Amarillo, TX: Hale Pub. pp. 89–111. ISBN 978-0-9772268-9-4. OCLC 233970853.
24. ^ a b c d e f g h i j k l Lawrence RA, Lawrence RM (2016). Breastfeeding : a guide for the medical profession (8 ed.). Philadelphia, PA. ISBN 978-0-323-39420-8. OCLC 921886130.`{{cite book}}`: CS1 maint: location missing publisher (link)
25. ^ a b Elling SV, Powell FC (January 1997). "Physiological changes in the skin during pregnancy". Clinics in Dermatology. Dermatologic Diseases and Problems of Women Throughout the Life Cycle. 15 (1): 35–43. doi:10.1016/S0738-081X(96)00108-3. PMID 9034654.
26. ^ a b c Simpson KR, Creehan PS (2014). Perinatal nursing (4 ed.). Philadelphia: Obstetric, and Neonatal Nurses Association of Women's Health. ISBN 978-1-4698-8109-6. OCLC 864058193.
27. ^ a b c d e Zheng T (2020). Comprehensive Handbook: Obstetrics & Gynecology. Paradise Valley, AZ: Phoenix Medical Press. OCLC 1249555693.
28. ^ Hurst NM (2007). "Recognizing and treating delayed or failed lactogenesis II". Journal of Midwifery & Women's Health. 52 (6): 588–594. doi:10.1016/j.jmwh.2007.05.005. PMID 17983996.
29. ^ Dobransky P. "Colostrum, Foremilk and Hindmilk". www.drpaul.com. Archived from the original on 3 July 2017. Retrieved 24 July 2017.
30. ^ "Mothers and Children Benefit from Breastfeeding". Womenshealth.gov. 27 February 2009. Archived from the original on 16 March 2009.
31. ^ Hendrickson RG, McKeown NJ (January 2012). "Is maternal opioid use hazardous to breast-fed infants?". Clinical Toxicology. 50 (1): 1–14. doi:10.3109/15563650.2011.635147. PMID 22148986. S2CID 207673799.
32. ^ a b c d e f g h i j k l Flaherman VJ, Maisels MJ (June 2017). "ABM Clinical Protocol #22: Guidelines for Management of Jaundice in the Breastfeeding Infant 35 Weeks or More of Gestation-Revised 2017". Breastfeeding Medicine. 12 (5). Academy of Breastfeeding Medicine: 250–257. doi:10.1089/bfm.2017.29042.vjf. PMID 29624434.
33. ^ "WHO | Vitamin A supplementation in neonates". WHO. Archived from the original on 31 March 2014. Retrieved 10 November 2021.
34. ^ a b Y de Vries J, Pundir S, Mckenzie E, Keijer J, Kussmann M (May 2018). "Maternal Circulating Vitamin Status and Colostrum Vitamin Composition in Healthy Lactating Women-A Systematic Approach". Nutrients. 10 (6): E687. doi:10.3390/nu10060687. PMC 6024806. PMID 29843443.
35. ^ CDC (26 August 2021). "Do infants get enough B12 from breast milk?". Centers for Disease Control and Prevention. Retrieved 10 November 2021.
36. ^ CDC (19 December 2019). "FAQs About Vitamin K Deficiency Bleeding | CDC". Centers for Disease Control and Prevention. Retrieved 10 November 2021.
37. ^ a b Colen CG, Ramey DM (May 2014). "Is breast truly best? Estimating the effects of breastfeeding on long-term child health and wellbeing in the United States using sibling comparisons". Social Science & Medicine. 109: 55–65. doi:10.1016/j.socscimed.2014.01.027. PMC 4077166. PMID 24698713.
38. ^ Gidrewicz DA, Fenton TR (August 2014). "A systematic review and meta-analysis of the nutrient content of preterm and term breast milk". BMC Pediatrics. 14 (1): 216. doi:10.1186/1471-2431-14-216. PMC 4236651. PMID 25174435.
39. ^ a b c d e f g h i j k l m n o p q r Lawrence RA, Lawrence RM, Noble L, Rosen-Carole C, Stuebe AM (2021). Breastfeeding: a guide for the medical profession (9th ed.). Philadelphia, PA. ISBN 978-0-323-68014-1. OCLC 1256449680.`{{cite book}}`: CS1 maint: location missing publisher (link)
40. ^ "Prevention of Rickets and Vitamin D Deficiency in Infants, Children, and Adolescents" (PDF). American Academy of Pediatrics. Retrieved 17 May 2021.
41. ^ Casey CF, Slawson DC, Neal LR (March 2010). "Vitamin D supplementation in infants, children, and adolescents". American Family Physician. 81 (6): 745–748. PMID 20229973.
42. ^ CDC (2 July 2021). "Vitamin D is needed to support healthy bone development". Centers for Disease Control and Prevention. Retrieved 10 November 2021.
43. ^ "Vitamin D Supplementation – Breastfeeding". CDC. 20 October 2009. Retrieved 15 January 2018.
44. ^ Canadian Paediatric Society. "Vitamin D". Caring for Kids. Retrieved 15 January 2018.
45. ^ "Vitamins for children - NHS.UK". NHS Choices Home Page. 21 December 2017. Retrieved 15 January 2018.
46. ^ Tan ML, Abrams SA, Osborn DA (December 2020). "Vitamin D supplementation for term breastfed infants to prevent vitamin D deficiency and improve bone health". The Cochrane Database of Systematic Reviews. 2020 (12): CD013046. doi:10.1002/14651858.CD013046.pub2. PMC 8812278. PMID 33305822. S2CID 228101037.
47. ^ a b CDC (2 September 2021). "Do infants get enough iron from breast milk?". Centers for Disease Control and Prevention. Retrieved 10 November 2021.
48. ^ Riskin A, Almog M, Peri R, Halasz K, Srugo I, Kessel A (February 2012). "Changes in immunomodulatory constituents of human milk in response to active infection in the nursing infant". Pediatric Research. 71 (2): 220–225. doi:10.1038/pr.2011.34. PMID 22258136. S2CID 2358000.
49. ^ a b "What is colostrum? How does it benefit my baby?". La Leche League. Archived from the original on 27 November 2015. Retrieved 28 November 2015.
50. ^ a b "Breastfeeding". Archived from the original on 20 February 2016.
51. ^ Protecting, promoting and supporting Breastfeeding in facilities providing maternity and newborn services (PDF). 2018. Archived from the original (PDF) on 17 April 2018. Retrieved 16 September 2019.
52. ^ a b Holmes AV, McLeod AY, Bunik M (December 2013). "ABM Clinical Protocol #5: Peripartum breastfeeding management for the healthy mother and infant at term, revision 2013". Breastfeeding Medicine. 8 (6): 469–473. doi:10.1089/bfm.2013.9979. PMC 3868283. PMID 24320091.
53. ^ a b "Breast Crawl". The Mother and Child Health and Education Trust. Archived from the original on 23 March 2018. Retrieved 22 March 2018.
54. ^ Moore ER, Bergman N, Anderson GC, Medley N (November 2016). "Early skin-to-skin contact for mothers and their healthy newborn infants". The Cochrane Database of Systematic Reviews. 2016 (11): CD003519. doi:10.1002/14651858.CD003519.pub4. PMC 6464366. PMID 27885658.
55. ^ "The Baby Friendly Initiative". Archived from the original on 6 May 2013.
56. ^ a b c d Gartner LM, Morton J, Lawrence RA, Naylor AJ, O'Hare D, Schanler RJ, et al. (February 2005). "Breastfeeding and the use of human milk". Pediatrics. 115 (2): 496–506. doi:10.1542/peds.2004-2491. PMID 15687461. S2CID 5791615.
57. ^ Thomas J, Marinelli KA (August 2016). "ABM Clinical Protocol #16: Breastfeeding the Hypotonic Infant, Revision 2016". Breastfeeding Medicine. 11 (6): 271–276. doi:10.1089/bfm.2016.29014.jat. PMID 27314160.
58. ^ Boies EG, Vaucher YE (December 2016). "ABM Clinical Protocol #10: Breastfeeding the Late Preterm (34–36 6/7 Weeks of Gestation) and Early Term Infants (37–38 6/7 Weeks of Gestation), Second Revision 2016". Breastfeeding Medicine. 11 (10): 494–500. doi:10.1089/bfm.2016.29031.egb. PMID 27830934.
59. ^ a b c Boies EG, Vaucher YE (December 2016). "ABM Clinical Protocol #10: Breastfeeding the Late Preterm (34–36 6/7 Weeks of Gestation) and Early Term Infants (37–38 6/7 Weeks of Gestation), Second Revision 2016". Breastfeeding Medicine. 11 (10): 494–500. doi:10.1089/bfm.2016.29031.egb. PMID 27830934.
60. ^ "Breastfeeding Frequency". California Pacific Medical Center. Archived from the original on 28 June 2012.
61. ^ Bergman NJ (August 2013). "Neonatal stomach volume and physiology suggest feeding at 1-h intervals". Acta Paediatrica. 102 (8): 773–777. doi:10.1111/apa.12291. PMID 23662739. S2CID 8354240.
62. ^ "How do I breastfeed? Skip sharing on social media links". 14 April 2014. Archived from the original on 27 July 2015. Retrieved 27 July 2015.
63. ^ "Breastfeeding: Data: Report Card 2012: Outcome Indicators – DNPAO – CDC". 20 August 2018. Archived from the original on 7 July 2017.
64. ^ "Nutrition for Healthy Term Infants: Recommendations from Birth to Six Months". A joint statement of Health Canada, Canadian Paediatric Society, Dietitians of Canada, and Breastfeeding Committee for Canada. Health Canada. 18 August 2015. Archived from the original on 23 December 2016. Retrieved 31 January 2017.
65. ^ "Breastfeeding". Australian Government. 27 May 2014. Archived from the original on 8 February 2015. Retrieved 8 February 2015.
66. ^ "Why breastfeed? | National Health Service". 21 December 2017. Archived from the original on 1 August 2013.
67. ^ "Breastfeeding: Promotion & Support". CDC. 2 August 2011. Archived from the original on 29 July 2017.
68. ^ "Protection, promotion and support of breastfeeding in Europe: a blueprint for action" (PDF). Unit for Health Services Research and International Health. 2008. Archived (PDF) from the original on 11 June 2014. Retrieved 15 February 2015.
69. ^ Cattaneo A, Burmaz T, Arendt M, Nilsson I, Mikiel-Kostyra K, Kondrate I, et al. (June 2010). "Protection, promotion and support of breast-feeding in Europe: progress from 2002 to 2007". Public Health Nutrition. 13 (6): 751–759. doi:10.1017/S1368980009991844 (inactive 1 November 2024). PMID 19860992. S2CID 41294219.`{{cite journal}}`: CS1 maint: DOI inactive as of November 2024 (link)
70. ^ Smith HA, Becker GE (August 2016). "Early additional food and fluids for healthy breastfed full-term infants". The Cochrane Database of Systematic Reviews. 2016 (8): CD006462. doi:10.1002/14651858.CD006462.pub4. PMC 8588276. PMID 27574798.
71. ^ "Breastfeeding, Family Physicians Supporting (Position Paper)". American Academy of Family Physicians (AAFP). Retrieved 1 November 2021.
72. ^ "ACOG Committee Opinion No. 756: Optimizing Support for Breastfeeding as Part of Obstetric Practice". Obstetrics and Gynecology. 132 (4): e187–e196. October 2018. doi:10.1097/AOG.0000000000002890. PMID 30247365. S2CID 52346183.
73. ^ a b Abrams SA, Landers S, Noble LM, Poindexter BB, Daniels S, Corkins M, et al. (Committee on Nutrition; Section on Breastfeeding; Committee on Fetus and Newborn) (January 2017). "Donor Human Milk for the High-Risk Infant: Preparation, Safety, and Usage Options in the United States". Pediatrics. 139 (1): e20163440. doi:10.1542/peds.2016-3440. PMID 27994111. S2CID 21152598.
74. ^ World Health Organization. (2003). Global strategy for infant and young child feeding (PDF). Geneva, Switzerland: World Health Organization and UNICEF. ISBN 978-92-4-156221-8. Archived (PDF) from the original on 24 September 2009. Retrieved 20 September 2009.
75. ^ "Breastfeeding: Data: Report Card" (PDF). Center for Disease Control and Prevention. Archived (PDF) from the original on 4 January 2016. Retrieved 5 November 2015.
76. ^ "Infant and toddler health". Mayo Clinic. Archived from the original on 2 May 2016. Retrieved 12 May 2016.
77. ^ Stein MT, Boies EG, Snyder D (October 2004). "Parental concerns about extended breastfeeding in a toddler". Journal of Developmental and Behavioral Pediatrics. 25 (5 Suppl): S107–S111. doi:10.1097/00004703-200410001-00022. PMID 15502526.
78. ^ a b c d e f g h i Kellams A, Harrel C, Omage S, Gregory C, Rosen-Carole C (May 2017). "ABM Clinical Protocol #3: Supplementary Feedings in the Healthy Term Breastfed Neonate, Revised 2017". Breastfeeding Medicine. 12 (4): 188–198. doi:10.1089/bfm.2017.29038.ajk. hdl:10150/626017. PMID 28294631.
79. ^ Penny F, Judge M, Brownell E, McGrath JM (February 2018). "What Is the Evidence for Use of a Supplemental Feeding Tube Device as an Alternative Supplemental Feeding Method for Breastfed Infants?". Advances in Neonatal Care. 18 (1): 31–37. doi:10.1097/ANC.0000000000000446. PMID 29373347. S2CID 42316139.
80. ^ Healthwise Staff. "Breast-feeding: Learning how to nurse". Archived from the original on 21 March 2012. Retrieved 17 June 2009.
81. ^ "Positions and Tips for Making Breastfeeding Work". BabyCenter.com. Archived from the original on 27 October 2014. Retrieved 27 October 2014.
82. ^ a b c Newman J (1 January 2016). "International Breastfeeding Centre". Retrieved 12 November 2021. "A mother and her 28-hour-old infant breastfeeding, with the help of an International Board-Certified Lactation Consultant. This video illustrates how to latch a baby onto the breast, what a good latch looks like, and the movements that are associated with swallowing milk. The mother uses a breast compression technique to help move milk into the baby's mouth."
83. ^ "default – Stanford Children's Health". www.stanfordchildrens.org. Retrieved 12 November 2021.
84. ^ a b c d e f g h "International BreastFeeding Centre | What's missing in helping mothers with breastfeeding?". Retrieved 5 November 2021.
85. ^ Walker M (2014). Breastfeeding management for the clinician: using the evidence (3 ed.). Burlington, MA: Jones & Bartlett Learning. ISBN 978-1-4496-9465-4. OCLC 833313234.
86. ^ "Breastfeeding: positioning and attachment – NHS.UK". NHS Choices Home Page. 28 October 2016. Retrieved 7 April 2018.
87. ^ Lawrence & Lawrence 2015, p. 249.
88. ^ "Breastfeeding: positioning and attachment". nhs.uk. 7 December 2020. Retrieved 12 November 2021.
89. ^ a b "Nipple Pain". La Leche League GB. 30 January 2016. Retrieved 12 November 2021.
90. ^ "Pain: General". Le Leche League International. Retrieved 12 January 2022.
91. ^ "Breastfeeding: the first few days". NHS. 7 December 2020. Retrieved 12 January 2022.
92. ^ a b "Inverted and Flat Nipples". La Leche League International. Retrieved 12 November 2021.
93. ^ a b Cheung W. "Acrobat Accessibility Report" (PDF). www.toronto.ca. Retrieved 12 November 2021.
94. ^ "Infant Safety in Maternity Care Practices that Support Breastfeeding in US Birth Facilities". CDC. 28 January 2021. Retrieved 14 January 2022.
95. ^ Marmet C, Shell E, Aldana S (November 2000). "Assessing infant suck dysfunction: case management". Journal of Human Lactation. 16 (4): 332–336. doi:10.1177/089033440001600409. PMID 11188682. S2CID 208505043.
96. ^ Jaafar SH, Ho JJ, Jahanfar S, Angolkar M (August 2016). "Effect of restricted pacifier use in breastfeeding term infants for increasing duration of breastfeeding". The Cochrane Database of Systematic Reviews. 2016 (8): CD007202. doi:10.1002/14651858.CD007202.pub4. PMC 8520760. PMID 27572944.
97. ^ Gzzz (12 June 2018). "Français: Ankyloglossie (frein lingual court) chez un enfant de 4 ans". Retrieved 12 November 2021.
98. ^ "Tongue-tie (ankyloglossia)". Mayo Clinic. Retrieved 21 March 2018.
99. ^ "Breastfeeding checklist: How to get a good latch". WomensHealth.gov. 9 June 2017. Archived from the original on 4 August 2017. Retrieved 4 August 2017. This article incorporates text from this source, which is in the public domain.
100. ^ "Common questions about breastfeeding and pain". womenshealth.gov. 9 June 2017. Archived from the original on 4 August 2017. Retrieved 4 August 2017. This article incorporates text from this source, which is in the public domain.
101. ^ Amir LH, James JP, Donath SM (March 2006). "Reliability of the hazelbaker assessment tool for lingual frenulum function". International Breastfeeding Journal. 1 (1): 3. doi:10.1186/1746-4358-1-3. PMC 1464379. PMID 16722609.
102. ^ LeFort Y, Evans A, Livingstone V, Douglas P, Dahlquist N, Donnelly B, et al. (April 2021). "Academy of Breastfeeding Medicine Position Statement on Ankyloglossia in Breastfeeding Dyads". Breastfeeding Medicine. 16 (4): 278–281. doi:10.1089/bfm.2021.29179.ylf. PMID 33852342. S2CID 233242365.
103. ^ O'Shea JE, Foster JP, O'Donnell CP, Breathnach D, Jacobs SE, Todd DA, et al. (March 2017). "Frenotomy for tongue-tie in newborn infants". The Cochrane Database of Systematic Reviews. 3 (6): CD011065. doi:10.1002/14651858.cd011065.pub2. PMC 6464654. PMID 28284020.
104. ^ Visconti A, Hayes E, Ealy K, Scarborough DR (August 2021). "A systematic review: The effects of frenotomy on breastfeeding and speech in children with ankyloglossia". International Journal of Speech-Language Pathology. 23 (4): 349–358. doi:10.1080/17549507.2020.1849399. PMID 33501864. S2CID 231760695.
105. ^ "Ankyloglossia and Oral Frena Consensus Statement". The Australian Dental Association. 2020.
106. ^ "Engorged Breasts – avoiding and treating". La Leche League GB. 28 January 2016. Retrieved 14 November 2021.
107. ^ "Stopping Breastfeeding Suddenly – Topic Overview". WebMed, LLC. Archived from the original on 4 May 2016. Retrieved 6 May 2016.
108. ^ a b Berens P, Eglash A, Malloy M, Steube AM (March 2016). "ABM Clinical Protocol #26: Persistent Pain with Breastfeeding". Breastfeeding Medicine. 11 (2): 46–53. doi:10.1089/bfm.2016.29002.pjb. PMID 26881962.
109. ^ Lawrence & Lawrence 2015, p. 67.
110. ^ a b Neifert MR (April 2001). "Prevention of breastfeeding tragedies". Pediatr. Clin. North Am. 48 (2): 273–297. doi:10.1016/S0031-3955(08)70026-9. PMID 11339153.
111. ^ a b "Should a mother continue breastfeeding if her child has jaundice?". Centers for Disease Control and Prevention. 21 March 2018. Retrieved 22 March 2018.
112. ^ American Academy of Pediatrics Subcommittee on Hyperbilirubinemia (July 2004). "Management of hyperbilirubinemia in the newborn infant 35 or more weeks of gestation". Pediatrics. 114 (1): 297–316. doi:10.1542/peds.114.1.297. PMID 15231951. S2CID 2216960.
113. ^ Daws D (August 1997). "The perils of intimacy: Closeness and distance in feeding and weaning". Journal of Child Psychotherapy. 23 (2): 179–199. doi:10.1080/00754179708254541.
114. ^ a b "Is it normal to breast-feed your toddler, and beyond? Science says..." Today. 12 February 2015. Retrieved 26 March 2023.
115. ^ "How Do I Wean My Baby?". La Leche League International. Archived from the original on 28 April 2016. Retrieved 6 May 2016.
116. ^ "Infant Formula: Your questions answered". Mayo Clinic. Retrieved 28 July 2022.
117. ^ "Menstruation". La Leche League International. Retrieved 15 November 2021.
118. ^ "Breastfeeding, Family Physicians Supporting (Position Paper)". www.aafp.org. Retrieved 18 March 2021.
119. ^ Czosnykowska-Łukacka M, Orczyk-Pawiłowicz M, Broers B, Królak-Olejnik B (2019). "Lactoferrin in Human Milk of Prolonged Lactation". Nutrients. 11 (10): 2350. doi:10.3390/nu11102350. PMC 6835443. PMID 31581741.
120. ^ "IBLCE". IBLCE. Retrieved 12 November 2021.
121. ^ "ALPP – ALPP – The Academy of Lactation Policy and Practice". www.alpp.org. Retrieved 12 November 2021.
122. ^ "US Surgeon General Breastfeeding Executive Summary" (PDF). surgeongeneral.gov. Archived (PDF) from the original on 13 May 2017. Retrieved 6 September 2017.
123. ^ Office of the Surgeon General (US), Centers for Disease Control and Prevention (US), Office on Women's Health (US) (2011). "Actions to Improve Breastfeeding". Actions to Improve Breastfeeding (US). Office of the Surgeon General (US).
124. ^ a b Saldanha IJ, Adam GP, Kanaan G, Zahradnik ML, Steele DW, Danilack VA, Peahl AF, Chen KK, Stuebe AM, Balk EM. Postpartum Care up to 1 Year After Pregnancy: A Systematic Review and Meta-Analysis. Comparative Effectiveness Review No. 261. (Prepared by the Brown Evidence-based Practice Center under Contract No. 75Q80120D00001.) AHRQ Publication No. 23-EHC010. PCORI Publication No. 2023-SR-01. Rockville, MD: Agency for Healthcare Research and Quality; June 2023. DOI: https://doi.org/10.23970/AHRQEPCCER261.
125. ^ Lawrence & Lawrence 2015, Chapter 7. Facilitating an Informed Decision About Breastfeeding pp. 215–232.
126. ^ "WHO | Infant feeding for the prevention of mother-to-child transmission of HIV". WHO. Archived from the original on 31 March 2014. Retrieved 11 November 2021.
127. ^ a b Australian Government Department of Health. "Human Immunodeficiency virus (HIV)". www.health.gov.au. Retrieved 16 December 2017.
128. ^ Mead MN (October 2008). "Contaminants in human milk: weighing the risks against the benefits of breastfeeding". Environmental Health Perspectives. 116 (10): A427–A434. doi:10.1289/ehp.116-a426. PMC 2569122. PMID 18941560. Archived from the original on 6 November 2008.
129. ^ CDC (10 August 2021). "Human immunodeficiency virus (HIV)". Centers for Disease Control and Prevention. Retrieved 11 November 2021.
130. ^ Carneiro-Proietti AB, Amaranto-Damasio MS, Leal-Horiguchi CF, Bastos RH, Seabra-Freitas G, Borowiak DR, et al. (September 2014). "Mother-to-Child Transmission of Human T-Cell Lymphotropic Viruses-1/2: What We Know, and What Are the Gaps in Understanding and Preventing This Route of Infection". Journal of the Pediatric Infectious Diseases Society. 3 (Suppl 1): S24–S29. doi:10.1093/jpids/piu070. PMC 4164183. PMID 25232474.
131. ^ a b "Human T-lymphotropic virus type 1". www.who.int. Retrieved 11 November 2021.
132. ^ Paiva AM, Assone T, Haziot ME, Smid J, Fonseca LA, Luiz OD, et al. (May 2018). "Risk factors associated with HTLV-1 vertical transmission in Brazil: longer breastfeeding, higher maternal proviral load and previous HTLV-1-infected offspring". Scientific Reports. 8 (1): 7742. Bibcode:2018NatSR...8.7742P. doi:10.1038/s41598-018-25939-y. PMC 5958084. PMID 29773807.
133. ^ Boostani R, Sadeghi R, Sabouri A, Ghabeli-Juibary A (October 2018). "Human T-lymphotropic virus type I and breastfeeding; systematic review and meta-analysis of the literature". Iranian Journal of Neurology. 17 (4): 174–179. PMC 6555888. PMID 31210902.
134. ^ "Recommendations for Counseling Persons Infected with Human T-Lymphotrophic Virus, Types I and II *". www.cdc.gov. Retrieved 11 November 2021.
135. ^ a b c CDC (10 August 2021). "When breastfeeding or feeding expressed milk is not recommended". Centers for Disease Control and Prevention. Retrieved 19 November 2021.
136. ^ a b "Serious Illnesses and Breastfeeding". HealthyChildren.org. 2 November 2009. Retrieved 19 November 2021.
137. ^ a b CDC (2 October 2020). "Herpes simplex virus (HSV)". Centers for Disease Control and Prevention. Retrieved 11 November 2021.
138. ^ a b "Shingles | Breastfeeding | CDC". www.cdc.gov. 11 August 2021. Retrieved 11 November 2021.
139. ^ Walker KF, O'Donoghue K, Grace N, Dorling J, Comeau JL, Li W, et al. (October 2020). "Maternal transmission of SARS-COV-2 to the neonate, and possible routes for such transmission: a systematic review and critical analysis". BJOG. 127 (11): 1324–1336. doi:10.1111/1471-0528.16362. PMC 7323034. PMID 32531146.
140. ^ Krogstad P, Contreras D, Ng H, Tobin N, Chambers CD, Bertrand K, et al. (January 2022). "No infectious SARS-CoV-2 in breast milk from a cohort of 110 lactating women". Pediatric Research. 92 (4): 1140–1145. doi:10.1038/s41390-021-01902-y. PMC 9586866. PMID 35042956. S2CID 246018031.
141. ^ CDC (9 December 2021). "Breastfeeding and Caring for Newborns if You Have COVID-19". Centers for Disease Control and Prevention. Retrieved 17 January 2022.
142. ^ "Alcohol". 2006. PMID 30000529. `{{cite journal}}`: Cite journal requires `|journal=` (help)
143. ^ "Alcohol and breastfeeding". La Leche League GB. 8 April 2014. Retrieved 15 November 2021.
144. ^ a b Haastrup MB, Pottegård A, Damkier P (February 2014). "Alcohol and breastfeeding". Basic & Clinical Pharmacology & Toxicology. 114 (2): 168–173. doi:10.1111/bcpt.12149. PMID 24118767.
145. ^ American Academy of Pediatrics. "Fetal Alcohol Spectrum Disorders Toolkit Frequently Asked Questions". Retrieved 15 November 2017.
146. ^ CDC (10 August 2021). "Marijuana and Breastfeeding". Centers for Disease Control and Prevention. Retrieved 14 November 2021.
147. ^ a b c "Cannabis", Drugs and Lactation Database (LactMed), Bethesda (MD): National Library of Medicine (US), 2006, PMID 30000647, retrieved 14 November 2021
148. ^ a b CDC (16 February 2021). "Tobacco, E-Cigarettes and Breastfeeding". Centers for Disease Control and Prevention. Retrieved 12 November 2021.
149. ^ "Smoking and Breastfeeding". La Leche League International. Retrieved 12 November 2021.
150. ^ Hospital TR. "Breastfeeding & cigarette smoke". The Royal Women's Hospital. Retrieved 12 November 2021.
151. ^ a b CDC (10 August 2021). "When breastfeeding or feeding expressed milk is not recommended". Centers for Disease Control and Prevention. Retrieved 14 November 2021.
152. ^ Lawrence & Lawrence 2015, pp. 390–392.
153. ^ Drugs and Lactation Database (LactMed). National Library of Medicine (US). 2006.
154. ^ "InfantRisk Center". www.infantrisk.com. Retrieved 14 November 2021.
155. ^ a b Northwestern Medicine. "Pumping and Dumping Myths". Northwestern Medicine. Retrieved 14 November 2021.
156. ^ "Cancer and Breastfeeding". La Leche League International. 17 December 2018. Retrieved 14 November 2021.
157. ^ Adam MP, Ardinger HH, Pagon RA, Wallace SE, Bean LJ, Mirzaa G, et al. (1993). "Classic Galactosemia and Clinical Variant Galactosemia". In Adam MP, Ardinger HH, Pagon RA, Wallace SE (eds.). GeneReviews. Seattle (WA): University of Washington, Seattle. PMID 20301691.
158. ^ a b c d e f g h i Eglash A, Simon L (September 2017). "ABM Clinical Protocol #8: Human Milk Storage Information for Home Use for Full-Term Infants, Revised 2017". Breastfeeding Medicine. 12 (7): 390–395. doi:10.1089/bfm.2017.29047.aje. PMID 29624432.
159. ^ a b c Sriraman NK, Evans AE, Lawrence R, Noble L (2018). "Academy of Breastfeeding Medicine's 2017 Position Statement on Informal Breast Milk Sharing for the Term Healthy Infant". Breastfeeding Medicine. 13 (1): 2–4. doi:10.1089/bfm.2017.29064.nks. PMID 29634294. S2CID 4778146.
160. ^ Keim SA, Boone KM, Oza-Frank R, Geraghty SR (September 2017). "Pumping Milk Without Ever Feeding at the Breast in the Moms2Moms Study". Breastfeeding Medicine. 12 (7): 422–429. doi:10.1089/bfm.2017.0025. PMC 5646745. PMID 28727931.
161. ^ a b c d e f "Storing Human Milk". La Leche League International. Retrieved 28 December 2021.
162. ^ a b c d CDC (11 June 2021). "Proper Storage and Preparation of Breast Milk". Centers for Disease Control and Prevention. Retrieved 28 December 2021.
163. ^ Alcorn K (24 August 2004). "Shared breastfeeding identified as new risk factor for HIV". aidsmap. Archived from the original on 6 April 2007. Retrieved 10 April 2007.
164. ^ Groskop V (5 January 2007). "Not your mother's milk". The Guardian.
165. ^ Baumgardner J (24 July 2008). "Breast Friends". Babble. Archived from the original on 24 July 2008.
166. ^ Lawrence & Lawrence 2015, pp. 707–708.
167. ^ Grunberg R (1992). "Breastfeeding multiples: Breastfeeding triplets". New Beginnings. 9 (5): 135–136. Archived from the original on 12 October 2004.
168. ^ "Breastfeeding triplets, quads and higher". Australian Breastfeeding Association. 13 July 2011. Retrieved 23 January 2020.
169. ^ "Breastfeeding triplets". Association of Radical Midwives. Archived from the original on 20 October 2007.
170. ^ a b c d e f Morrison B, Wambach K (2014). "Women's Health and Breastfeeding". In Wambach K, Riordan J (eds.). Breastfeeding and Human Lactation (5th ed.). Jones & Bartlett Publishers. pp. 581–588. ISBN 978-1-4496-9729-7.
171. ^ a b c The Treatment Of Diarrhoea, A Manual For Physicians And Other Senior Health Workers (PDF). World Health Organization. 2005. p. 41\. Archived from the original (PDF) on 19 October 2011. "Helping mothers to breastfeed by F. Savage King. Revised edition 1992. African Medical and Research Foundation (AMREF), Nairobi, Kenya. Indian adaptation by R.K. Anand, Bombay"
172. ^ "Up to what age can a baby stay well nourished by just being breastfed?". WHO. July 2013. Archived from the original on 8 February 2015. Retrieved 7 February 2015.
173. ^ Ip S, Chung M, Raman G, Chew P, Magula N, DeVine D, et al. (April 2007). "Breastfeeding and maternal and infant health outcomes in developed countries". Evidence Report/Technology Assessment (153): 1–186. PMC 4781366. PMID 17764214.
174. ^ "Breastfeeding Saves Money on Health Care Costs". Breastfeeding Magazine. 4 August 2017. Archived from the original on 7 January 2023. Retrieved 20 May 2022.
175. ^ Renfrew MJ, Lang S, Woolridge MW (2000). "Early versus delayed initiation of breastfeeding". The Cochrane Database of Systematic Reviews (2): CD000043. doi:10.1002/14651858.CD000043 (inactive 1 November 2024). PMID 10796101.`{{cite journal}}`: CS1 maint: DOI inactive as of November 2024 (link)
176. ^ Moore ER, Bergman N, Anderson GC, Medley N (November 2016). "Early skin-to-skin contact for mothers and their healthy newborn infants". The Cochrane Database of Systematic Reviews. 2016 (11): CD003519. doi:10.1002/14651858.CD003519.pub4. PMC 3979156. PMID 27885658.
177. ^ a b c d e f Horta BL, Bahl R, Martines JC, Victora CG (2007). Evidence on the long-term effects of breastfeeding: systematic reviews and meta-analyses (PDF). Geneva, Switzerland: World Health Organization. ISBN 978-92-4-159523-0. Archived (PDF) from the original on 29 December 2009. Retrieved 5 April 2010.
178. ^ a b c d e f g Ip S, Chung M, Raman G, Chew P, Magula N, DeVine D, et al. (April 2007). Breastfeeding and maternal and infant health outcomes in developed countries. Agency for Healthcare Research and Quality (US). pp. 1–186. ISBN 978-1-58763-242-6. PMC 4781366. PMID 17764214. `{{cite book}}`: `|journal=` ignored (help)
179. ^ Hauck FR, Thompson JM, Tanabe KO, Moon RY, Vennemann MM (July 2011). "Breastfeeding and reduced risk of sudden infant death syndrome: a meta-analysis". Pediatrics. 128 (1): 103–110. doi:10.1542/peds.2010-3000. PMID 21669892. S2CID 1257376.
180. ^ "Breastfeeding: Hints to Help You Get Off to a Good Start". familydoctor.org. American Academy of Family Physicians. 1 September 2000. Retrieved 25 November 2018.
181. ^ Huang J, Peters KE, Vaughn MG, Witko C (May 2014). "Breastfeeding and trajectories of children's cognitive development". Developmental Science. 17 (3): 452–461. doi:10.1111/desc.12136. PMC 3997588. PMID 24410811.
182. ^ "Breastfeeding Is an Investment in Health, Not Just a Lifestyle Decision". CDC. 23 August 2021. Retrieved 11 January 2022.
183. ^ Ministry of Health Health Promotion Council. "Guideline for Management of Child Screening in Primary Care Settings and Outpatient Clinics in the Kingdom of Bahrain" (PDF). Kingdom of Bahrain Ministry of Health Health Promotion Council. Archived from the original (PDF) on 23 February 2015. Retrieved 23 February 2015.
184. ^ Dewey KG, Heinig MJ, Nommsen LA, Peerson JM, Lönnerdal B (June 1992). "Growth of breast-fed and formula-fed infants from 0 to 18 months: the DARLING Study". Pediatrics. 89 (6 Pt 1): 1035–1041. doi:10.1542/peds.89.6.1035. PMID 1594343. S2CID 24423059. Archived from the original on 4 December 2015. Retrieved 23 February 2015.
185. ^ Kunz C, Rodriguez-Palmero M, Koletzko B, Jensen R (June 1999). "Nutritional and biochemical properties of human milk, Part I: General aspects, proteins, and carbohydrates". Clinics in Perinatology. 26 (2): 307–333. doi:10.1016/S0095-5108(18)30055-1. PMID 10394490.
186. ^ Rodriguez-Palmero M, Koletzko B, Kunz C, Jensen R (June 1999). "Nutritional and biochemical properties of human milk: II. Lipids, micronutrients, and bioactive factors". Clinics in Perinatology. 26 (2): 335–359. doi:10.1016/S0095-5108(18)30056-3. PMID 10394491.
187. ^ Hanson LA, Söderström T (1981). "Human milk: Defense against infection". Progress in Clinical and Biological Research. 61: 147–159. PMID 6798576.
188. ^ Van de Perre P (July 2003). "Transfer of antibody via mother's milk". Vaccine. 21 (24): 3374–3376. doi:10.1016/S0264-410X(03)00336-0. PMID 12850343.
189. ^ Jackson KM, Nazar AM (April 2006). "Breastfeeding, the immune response, and long-term health". The Journal of the American Osteopathic Association. 106 (4): 203–207. PMID 16627775.
190. ^ Vukavic T (May 1983). "Intestinal absorption of IgA in the newborn". Journal of Pediatric Gastroenterology and Nutrition. 2 (2): 248–251. doi:10.1097/00005176-198305000-00006. PMID 6875749.
191. ^ Weaver LT, Wadd N, Taylor CE, Greenwell J, Toms GL (1991). "The ontogeny of serum IgA in the newborn". Pediatric Allergy and Immunology. 2 (2): 72–75. doi:10.1111/j.1399-3038.1991.tb00185.x. S2CID 71842218.
192. ^ Winslow R (26 August 2013). "Many Drugs Found Safe for Breast-Feeding Mothers". Wall Street Journal. Retrieved 2 September 2013.
193. ^ a b Sachs HC (September 2013). "The transfer of drugs and therapeutics into human breast milk: an update on selected topics". Pediatrics. 132 (3): e796–e809. doi:10.1542/peds.2013-1985. PMID 23979084. S2CID 175438.
194. ^ "For breastfeeding moms, COVID-19 vaccinations may also protect babies". Washington University in St. Louis. 6 April 2021. Retrieved 26 March 2023.
195. ^ WHO "Strategic directions for improving the health and development of children and adolescents", WHO/FCH/CAH/02.21, Geneva: Department of Child and Adolescent Health and Development, World Health Organization.
196. ^ Arenz S, Rückerl R, Koletzko B, von Kries R (October 2004). "Breast-feeding and childhood obesity - a systematic review". International Journal of Obesity and Related Metabolic Disorders. 28 (10): 1247–1256. doi:10.1038/sj.ijo.0802758. PMID 15314625. S2CID 25205202.
197. ^ Moss BG, Yeaton WH (July 2014). "Early childhood healthy and obese weight status: potentially protective benefits of breastfeeding and delaying solid foods". Maternal and Child Health Journal. 18 (5): 1224–1232. doi:10.1007/s10995-013-1357-z. PMID 24057991. S2CID 19203449.
198. ^ Greer FR, Sicherer SH, Burks AW (January 2008). "Effects of early nutritional interventions on the development of atopic disease in infants and children: the role of maternal dietary restriction, breastfeeding, timing of introduction of complementary foods, and hydrolyzed formulas". Pediatrics. 121 (1): 183–191. doi:10.1542/peds.2007-3022. PMID 18166574. S2CID 219206967.
199. ^ Ramsay DT, Kent JC, Owens RA, Hartmann PE (2004). "Ultrasound Imaging of Milk Ejection in the Breast of Lactating Women". Pediatrics. 113 (2): 361–367. doi:10.1542/peds.113.2.361. PMID 14754950.
200. ^ Hassiotou F, Geddes DT, Hartmann PE (2013). "Cells in Human Milk". Journal of Human Lactation. 29 (2): 171–182. doi:10.1177/0890334413477242. PMID 23515088.
201. ^ Szajewska H, Shamir R, Chmielewska A, Pieścik-Lech M, Auricchio R, Ivarsson A, et al. (June 2015). "Systematic review with meta-analysis: early infant feeding and coeliac disease". Alimentary Pharmacology & Therapeutics. 41 (11): 1038–1054. doi:10.1111/apt.13163. PMID 25819114. S2CID 22628343.
202. ^ Bethune MT, Khosla C (February 2008). "Parallels between pathogens and gluten peptides in celiac sprue". PLOS Pathogens. 4 (2): e34. doi:10.1371/journal.ppat.0040034. PMC 2323203. PMID 18425213.
203. ^ Amitay EL, Keinan-Boker L (June 2015). "Breastfeeding and Childhood Leukemia Incidence: A Meta-analysis and Systematic Review". JAMA Pediatrics. 169 (6): e151025. doi:10.1001/jamapediatrics.2015.1025. PMID 26030516.
204. ^ Eusebio-Ponce E, Candel FJ, Anguita E (August 2019). "Human T-Cell Lymphotropic Virus Type 1 and associated diseases in Latin America". Tropical Medicine & International Health. 24 (8): 934–953. doi:10.1111/tmi.13278. PMID 31183938. S2CID 184485435.
205. ^ Owen CG, Martin RM, Whincup PH, Smith GD, Cook DG (November 2006). "Does breastfeeding influence risk of type 2 diabetes in later life? A quantitative analysis of published evidence". The American Journal of Clinical Nutrition. 84 (5): 1043–1054. doi:10.1093/ajcn/84.5.1043. PMID 17093156.
206. ^ Palmer B (June 1998). "The influence of breastfeeding on the development of the oral cavity: a commentary". Journal of Human Lactation. 14 (2): 93–98. doi:10.1177/089033449801400203. PMID 9775838. S2CID 29129955. Archived from the original on 16 March 2013.
207. ^ Kremer KP, Kremer TR (January 2018). "Breastfeeding Is Associated with Decreased Childhood Maltreatment". Breastfeeding Medicine. 13 (1): 18–22. doi:10.1089/bfm.2017.0105. PMID 29125322.
208. ^ Der G, Batty GD, Deary IJ (November 2006). "Effect of breast feeding on intelligence in children: prospective study, sibling pairs analysis, and meta-analysis". BMJ. 333 (7575): 945. doi:10.1136/bmj.38978.699583.55. PMC 1633819. PMID 17020911.
209. ^ Huang J, Vaughn MG, Kremer KP (October 2016). "Breastfeeding and child development outcomes: an investigation of the nurturing hypothesis". Maternal & Child Nutrition. 12 (4): 757–767. doi:10.1111/mcn.12200. PMC 5087141. PMID 26194444.
210. ^ Bell AF, Erickson EN, Carter CS (2014). "Beyond labor: the role of natural and synthetic oxytocin in the transition to motherhood". Journal of Midwifery & Women's Health. 59 (1): 35–42: quiz 108. doi:10.1111/jmwh.12101. PMC 3947469. PMID 24472136.
211. ^ a b c Chowdhury R, Sinha B, Sankar MJ, Taneja S, Bhandari N, Rollins N, et al. (December 2015). "Breastfeeding and maternal health outcomes: a systematic review and meta-analysis". Acta Paediatrica. 104 (467): 96–113. doi:10.1111/apa.13102. PMC 4670483. PMID 26172878.
212. ^ Kramer MS, Kakuma R, et al. (Cochrane Pregnancy and Childbirth Group) (August 2012). "Optimal duration of exclusive breastfeeding". The Cochrane Database of Systematic Reviews. 2012 (8): CD003517. doi:10.1002/14651858.CD003517.pub2. PMC 7154583. PMID 22895934.
213. ^ Price C, Robinson S (2004). Birth. Pan Macmillan Australia. ISBN 978-1-74334-890-1.
214. ^ Holdcroft A, Snidvongs S, Cason A, Doré CJ, Berkley KJ (August 2003). "Pain and uterine contractions during breast feeding in the immediate post-partum period increase with parity". Pain. 104 (3): 589–596. doi:10.1016/S0304-3959(03)00116-7. PMID 12927631. S2CID 11478005.
215. ^ Abedi P, Jahanfar S, Namvar F, Lee J (2016). "Breastfeeding the newborn or nipple stimulation for reducing postpartum haemorrhage in the third stage of labour". The Cochrane Database of Systematic Reviews. 2016 (1): CD010845. doi:10.1002/14651858.CD010845.pub2. PMC 6718231. PMID 26816300. Retrieved 12 January 2021.
216. ^ He X, Zhu M, Hu C, Tao X, Li Y, Wang Q, et al. (December 2015). "Breast-feeding and postpartum weight retention: a systematic review and meta-analysis". Public Health Nutrition. 18 (18): 3308–3316. doi:10.1017/S1368980015000828. PMC 10271764. PMID 25895506. S2CID 24962601.
217. ^ Neville CE, McKinley MC, Holmes VA, Spence D, Woodside JV (April 2014). "The relationship between breastfeeding and postpartum weight change – a systematic review and critical evaluation". International Journal of Obesity. 38 (4): 577–590. doi:10.1038/ijo.2013.132. PMID 23892523. S2CID 6127250.
218. ^ a b Feltner C, Weber RP, Stuebe A, Grodensky C, Orr C, Viswanathan M (18 July 2018). "Breastfeeding Programs and Policies, Breastfeeding Uptake, and Maternal Health Outcomes in Developed Countries". AHRQ Publication. doi:10.23970/ahrqepccer210. S2CID 56834158. No. 18-EHC014-EF.
219. ^ "Making the decision to breastfeed | womenshealth.gov". womenshealth.gov. 23 January 2017. Retrieved 2 December 2017.
220. ^ Aune D, Norat T, Romundstad P, Vatten LJ (February 2014). "Breastfeeding and the maternal risk of type 2 diabetes: a systematic review and dose-response meta-analysis of cohort studies". Nutrition, Metabolism, and Cardiovascular Diseases. 24 (2): 107–115. doi:10.1016/j.numecd.2013.10.028. PMID 24439841.
221. ^ Collaborative Group on Hormonal Factors in Breast Cancer (July 2002). "Breast cancer and breastfeeding: collaborative reanalysis of individual data from 47 epidemiological studies in 30 countries, including 50302 women with breast cancer and 96973 women without the disease". Lancet. 360 (9328): 187–195. doi:10.1016/S0140-6736(02)09454-0. PMID 12133652. S2CID 25250519.
222. ^ "Breastfeeding reduces mothers' cardiovascular disease risk". ScienceDaily.
223. ^ Miller LJ, LaRusso EM (March 2011). "Preventing postpartum depression". The Psychiatric Clinics of North America. 34 (1): 53–65. doi:10.1016/j.psc.2010.11.010. PMID 21333839.
224. ^ Figueiredo B, Dias CC, Brandão S, Canário C, Nunes-Costa R (2013). "Breastfeeding and postpartum depression: state of the art review". Jornal de Pediatria. 89 (4): 332–338. doi:10.1016/j.jped.2012.12.002. hdl:10216/102955. PMID 23791236. S2CID 6578686.
225. ^ Dias CC, Figueiredo B (January 2015). "Breastfeeding and depression: a systematic review of the literature". Journal of Affective Disorders. 171: 142–154. doi:10.1016/j.jad.2014.09.022. hdl:1822/41376. PMID 25305429.
226. ^ "What is D-MER". Le Leche League. 5 November 2018. Retrieved 14 January 2022.
227. ^ Ureño TL, Berry-Cabán CS, Adams A, Buchheit TL, Hopkinson SG (November 2019). "Dysphoric Milk Ejection Reflex: A Descriptive Study". Breastfeeding Medicine. 14 (9): 666–673. doi:10.1089/bfm.2019.0091. PMID 31393168. S2CID 199504292.
228. ^ Deif R, Burch EM, Azar J, Yonis N, Abou Gabal M, El Kramani N, et al. (2021). "Dysphoric Milk Ejection Reflex: The Psychoneurobiology of the Breastfeeding Experience". Frontiers in Global Women's Health. 2: 669826. doi:10.3389/fgwh.2021.669826. PMC 8594038. PMID 34816221.
229. ^ "The Surgeon General's Call to Action to Support Breastfeeding" (PDF). U.S. Department of Health and Human Services. Archived (PDF) from the original on 22 December 2015. Retrieved 12 December 2015.
230. ^ Benjamin RM (2011). "Public health in action: give mothers support for breastfeeding". Public Health Reports. 126 (5): 622–623. doi:10.1177/003335491112600502. PMC 3151176. PMID 21886320.
231. ^ Gavine A, Shinwell SC, Buchanan P, Farre A, Wade A, Lynn F, et al. (25 October 2022). "Support for healthy breastfeeding mothers with healthy term babies". The Cochrane Database of Systematic Reviews. 2022 (10): CD001141. doi:10.1002/14651858.CD001141.pub6. ISSN 1469-493X. PMC 9595242. PMID 36282618.
232. ^ a b Lumbiganon P, Martis R, Laopaiboon M, Festin MR, Ho JJ, Hakimi M (December 2016). "Antenatal breastfeeding education for increasing breastfeeding duration". The Cochrane Database of Systematic Reviews. 2016 (12): CD006425. doi:10.1002/14651858.CD006425.pub4. PMC 4164447. PMID 27922724.
233. ^ a b Laugen CM, Islam N, Janssen PA (September 2016). "Social Support and Exclusive Breast feeding among Canadian Women". Paediatric and Perinatal Epidemiology. 30 (5): 430–438. doi:10.1111/ppe.12303. PMID 27271342.
234. ^ Sampson H. "Someone left a heartfelt note in an airport breast-feeding pod. Now there are thousands like it across the country". The Washington Post. Retrieved 23 December 2019.
235. ^ Raj VK, Plichta SB (March 1998). "The role of social support in breastfeeding promotion: a literature review". Journal of Human Lactation. 14 (1): 41–45. doi:10.1177/089033449801400114. PMID 9543958. S2CID 24061441.
236. ^ Woods NK, Chesser AK, Wipperman J (October 2013). "Describing adolescent breastfeeding environments through focus groups in an urban community". Journal of Primary Care & Community Health. 4 (4): 307–310. doi:10.1177/2150131913487380. PMID 23799673. S2CID 20835985.
237. ^ Ireland J (20 July 2011). "Will My Breasts Be Ruined After Breastfeeding?". LiveStrong.com. Archived from the original on 8 April 2013. Retrieved 27 January 2013.
238. ^ Lutenbacher M, Karp SM, Moore ER (February 2016). "Reflections of Black Women Who Choose to Breastfeed: Influences, Challenges and Supports". Maternal and Child Health Journal. 20 (2): 231–239. doi:10.1007/s10995-015-1822-y. PMID 26496988. S2CID 23422281.
239. ^ Galson SK (July 2008). "Mothers and children benefit from breastfeeding" (PDF). Journal of the American Dietetic Association. 108 (7): 1106. doi:10.1016/j.jada.2008.04.028. PMID 18589012. Archived (PDF) from the original on 14 August 2012.
240. ^ "State of the World's Mothers 2012" (PDF). Save the Children. May 2012. Archived from the original (PDF) on 23 May 2012.
241. ^ Ogbuanu C, Glover S, Probst J, Liu J, Hussey J (June 2011). "The effect of maternity leave length and time of return to work on breastfeeding". Pediatrics. 127 (6): e1414–e1427. doi:10.1542/peds.2010-0459. PMC 3387873. PMID 21624878.
242. ^ Prior E, Santhakumaran S, Gale C, Philipps LH, Modi N, Hyde MJ (May 2012). "Breastfeeding after cesarean delivery: a systematic review and meta-analysis of world literature". The American Journal of Clinical Nutrition. 95 (5): 1113–1135. doi:10.3945/ajcn.111.030254. PMID 22456657.
243. ^ Zhao J, Zhao Y, Du M, Binns CW, Lee AH (November 2017). "Does Caesarean Section Affect Breastfeeding Practices in China? A Systematic Review and Meta-Analysis". Maternal and Child Health Journal. 21 (11): 2008–2024. doi:10.1007/s10995-017-2369-x. PMID 29019000. S2CID 22446389.
244. ^ Lawrence & Lawrence 2015, pp. 615–616.
245. ^ Lawrence & Lawrence 2015, p. 231.
246. ^ Schiff M, Algert CS, Ampt A, Sywak MS, Roberts CL (2014). "The impact of cosmetic breast implants on breastfeeding: a systematic review and meta-analysis". International Breastfeeding Journal. 9: 17. doi:10.1186/1746-4358-9-17. PMC 4203468. PMID 25332722.
247. ^ Roberts CL, Ampt AJ, Algert CS, Sywak MS, Chen JS (April 2015). "Reduced breast milk feeding subsequent to cosmetic breast augmentation surgery". The Medical Journal of Australia. 202 (6): 324–328. doi:10.5694/mja14.01386. PMID 25832160. S2CID 19130798.
248. ^ Lawrence & Lawrence 2015, pp. 231, 616.
249. ^ Kraut RY, Brown E, Korownyk C, Katz LS, Vandermeer B, Babenko O, et al. (2017). "The impact of breast reduction surgery on breastfeeding: Systematic review of observational studies". PLOS ONE. 12 (10): e0186591. Bibcode:2017PLoSO..1286591K. doi:10.1371/journal.pone.0186591. PMC 5648284. PMID 29049351.
250. ^ "Drug Use During Breastfeeding – Women's Health Issues". MSD Manual Consumer Version. Retrieved 23 February 2021.
251. ^ "AAP Advises Most Medications Are Safe for Breastfeeding Mothers". American Academy of Pediatrics. 26 August 2013. Archived from the original on 12 July 2015. Retrieved 11 July 2015.
252. ^ Myers GJ, Thurston SW, Pearson AT, Davidson PW, Cox C, Shamlaye CF, et al. (May 2009). "Postnatal exposure to methyl mercury from fish consumption: a review and new data from the Seychelles Child Development Study". Neurotoxicology. 30 (3): 338–349. Bibcode:2009NeuTx..30..338M. doi:10.1016/j.neuro.2009.01.005. PMC 2743883. PMID 19442817.
253. ^ Howard CR, Lawrence RA (March 1998). "Breast-feeding and drug exposure". Obstetrics and Gynecology Clinics of North America. 25 (1): 195–217. doi:10.1016/S0889-8545(05)70365-X. PMID 9547767.
254. ^ Sun Y, Irie M, Kishikawa N, Wada M, Kuroda N, Nakashima K (October 2004). "Determination of bisphenol A in human breast milk by HPLC with column-switching and fluorescence detection". Biomedical Chromatography. 18 (8): 501–507. doi:10.1002/bmc.345. PMID 15386523.
255. ^ Ye X, Kuklenyik Z, Needham LL, Calafat AM (February 2006). "Measuring environmental phenols and chlorinated organic chemicals in breast milk using automated on-line column-switching-high performance liquid chromatography-isotope dilution tandem mass spectrometry". Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences. 831 (1–2): 110–115. doi:10.1016/j.jchromb.2005.11.050. PMID 16377264.
256. ^ Tersigni C, Castellani R, de Waure C, Fattorossi A, De Spirito M, Gasbarrini A, et al. (2014). "Celiac disease and reproductive disorders: meta-analysis of epidemiologic associations and potential pathogenic mechanisms". Human Reproduction Update. 20 (4): 582–593. doi:10.1093/humupd/dmu007. hdl:10807/56796. PMID 24619876.
257. ^ Gouveri E, Papanas N, Hatzitolios AI, Maltezos E (March 2011). "Breastfeeding and diabetes". Current Diabetes Reviews. 7 (2): 135–142. doi:10.2174/157339911794940684. PMID 21348815.
258. ^ Bever Babendure J, Reifsnider E, Mendias E, Moramarco MW, Davila YR (2015). "Reduced breastfeeding rates among obese mothers: a review of contributing factors, clinical considerations and future directions". International Breastfeeding Journal. 10: 21. doi:10.1186/s13006-015-0046-5. PMC 4488037. PMID 26140049.
259. ^ Johnson A, Kirk R, Rosenblum KL, Muzik M (1 February 2015). "Enhancing breastfeeding rates among African American women: a systematic review of current psychosocial interventions". Breastfeeding Medicine. 10 (1): 45–62. doi:10.1089/bfm.2014.0023. PMC 4307211. PMID 25423601.
260. ^ a b Reeves EA, Woods-Giscombé CL (May 2015). "Infant-feeding practices among African American women: social-ecological analysis and implications for practice". Journal of Transcultural Nursing. 26 (3): 219–226. doi:10.1177/1043659614526244. PMID 24810518. S2CID 19406044.
261. ^ Lind JN, Perrine CG, Li R, Scanlon KS, Grummer-Strawn LM (August 2014). "Racial disparities in access to maternity care practices that support breastfeeding – United States, 2011". MMWR. Morbidity and Mortality Weekly Report. 63 (33): 725–728. PMC 5779438. PMID 25144543. Archived from the original on 27 April 2017.
262. ^ "The Surgeon General's Call to Action to Support Breastfeeding". BBC News. U.S. Department of Health and Human Services. 2011. Archived (PDF) from the original on 17 February 2013. Retrieved 11 October 2018.
263. ^ "Family Planning – Healthy People 2020". Archived from the original on 28 December 2010. Retrieved 18 August 2011.
264. ^ Rabin RC (9 July 2018). "Trump Stance on Breast-Feeding and Formula Criticized by Medical Experts". The New York Times. Retrieved 29 July 2018.
265. ^ a b Boyer K (March 2011). ""The way to break the taboo is to do the taboo thing" breastfeeding in public and citizen-activism in the UK". Health & Place. 17 (2): 430–437. doi:10.1016/j.healthplace.2010.06.013. PMID 20655272. S2CID 5425056.
266. ^ a b Wolf JH (August 2008). "Got milk? Not in public!". International Breastfeeding Journal. 3 (1): 11. doi:10.1186/1746-4358-3-11. PMC 2518137. PMID 18680578.
267. ^ "Breastfeeding Legislation in the United States: A General Overview and Implications for Helping Mothers". LEAVEN. 41 (3): 51–54. 2005. Archived from the original on 31 March 2007.
268. ^ Jordan T, Pile S, eds. (2002). Social Change. Blackwell. p. 233\. ISBN 978-0-631-23311-4.
269. ^ Hausman BL (1 January 2007). "Things (Not) to Do with Breasts in Public: Maternal Embodiment and the Biocultural Politics of Infant Feeding". New Literary History. 38 (3): 479–504. doi:10.1353/nlh.2007.0039. hdl:10919/25465. S2CID 144811498.
270. ^ Boyer K (1 January 2010). "Of care and commodities: breast milk and the new politics of mobile biosubstances". Progress in Human Geography. 34 (1): 5–20. doi:10.1177/0309132509105003. S2CID 143449458.
271. ^ Al-Awadi AR (14 May 1981). "Draft International Code of Marketing of Breastmilk substitutes" (PDF). Thirty-fourth World Health Assembly, Agenda item 23.2. World Health Organization. World Health Organization(Organisation Mondiale de la Sante). Archived (PDF) from the original on 11 June 2016.
272. ^ Harmon A (7 June 2005). "'Lactivists' Taking Their Cause, and Their Babies, to the Streets". The New York Times.
273. ^ Battersby S (2010). "Understanding the social and cultural influences on breast-feeding today". The Journal of Family Health Care. 20 (4): 128–131. PMID 21053661.
274. ^ Spencer B, Wambach K, Domain EW (July 2015). "African American Women's Breastfeeding Experiences: Cultural, Personal, and Political Voices". Qualitative Health Research. 25 (7): 974–987. doi:10.1177/1049732314554097. PMID 25288408. S2CID 22245122.
275. ^ a b Taylor EN, Wallace LE (2012). "For Shame: Feminism, Breastfeeding Advocacy, and Maternal Guilt". Hypatia. 27 (1): 76–98. doi:10.1111/j.1527-2001.2011.01238.x. S2CID 144203268.
276. ^ Forbes GB, Adams-Curtis LE, Hamm NR, White KB (2003). "Perceptions of the Woman Who Breastfeeds: The Role of Erotophobia, Sexism, and Attitudinal Variables". Sex Roles. 49 (7/8): 379–388. doi:10.1023/A:1025116305434. S2CID 140745639.
277. ^ "Breastfeeding State Laws". www.ncsl.org. Retrieved 5 March 2021.
278. ^ Duckworth T (11 May 2017). "S.1110 – 115th Congress (2017–2018): Friendly Airports for Mothers Act of 2017". www.congress.gov. Retrieved 5 March 2021.
279. ^ "Barriers to Breastfeeding in the United States – the Surgeon General's Call to Action to Support Breastfeeding". National Center for Biotechnology Information. Office of the Surgeon General (US); Centers for Disease Control and Prevention (US); Office on Women's Health (US). Retrieved 13 January 2019.
280. ^ a b "Breastfeeding in Public Places". Maternity Action. Retrieved 25 June 2018.
281. ^ a b Dinour LM, Bai YK (September 2016). "Breastfeeding: The Illusion of Choice". Women's Health Issues. 26 (5): 479–482. doi:10.1016/j.whi.2016.06.002. PMID 27444340.
282. ^ Davies L (12 January 2014). "Pope Francis encourages mothers to breastfeed – even in the Sistine Chapel". The Guardian. Archived from the original on 13 February 2017.
283. ^ "Infants exclusively breastfed for the first six months of life (%)". World Health Organization. Archived from the original on 26 March 2016. Retrieved 27 July 2015.
284. ^ "Results: Breastfeeding Rates". CDC. 1 August 2018. Retrieved 9 December 2018.
285. ^ Katelyn V. Chiang, Ruowei Li, Erica H. Anstey, Cria G. Perrine (28 May 2021). "Racial and Ethnic Disparities in Breastfeeding Initiation – United States, 2019, Table 1". Morbidity and Mortality Weekly Report. 70 (21): 769–774. doi:10.15585/mmwr.mm7021a1. PMC 8158892. PMID 34043611.
286. ^ Xu F, Qiu L, Binns CW, Liu X (June 2009). "Breastfeeding in China: a review". International Breastfeeding Journal. 4 (1): 6. doi:10.1186/1746-4358-4-6. PMC 2706212. PMID 19531253.
287. ^ "UK 'world's worst' at breastfeeding". BBC. 29 January 2016. Archived from the original on 29 January 2016. Retrieved 30 January 2016.
288. ^ "Australia – Breastfeeding rates for children born in 2004". Archived from the original on 3 June 2016.
289. ^ "A Comparison of Breastfeeding Rates by Country • KellyMom.com". KellyMom.com. 14 May 2012. Archived from the original on 2 May 2016. Retrieved 4 May 2016.
290. ^ Nathoo T, Ostry A (2011). The One Best Way?: Breastfeeding History, Politics, and Policy in Canada. Wilfrid Laurier Univ. Press. pp. 4–. ISBN 978-1-55458-758-2.
291. ^ "Do mothers need more calories while breastfeeding?". Centers for Disease Control and Prevention. Retrieved 1 September 2021.
292. ^ Ball TM, Wright AL (April 1999). "Health care costs of formula-feeding in the first year of life". Pediatrics. 103 (4 Pt 2): 870–876. doi:10.1542/peds.103.S1.870. PMID 10103324. S2CID 5703407.
293. ^ Cohen LR, Wright JD (2011). Research Handbook on the Economics of Family Law. Edward Elgar Publishing. p. 185\. ISBN 978-0-85793-064-4.
294. ^ Flaherman V, Schaefer EW, Kuzniewicz MW, Li SX, Walsh EM, Paul IM (August 2018). "Health Care Utilization in the First Month After Birth and Its Relationship to Newborn Weight Loss and Method of Feeding". Academic Pediatrics. 18 (6): 677–684. doi:10.1016/j.acap.2017.11.005. PMID 29191700. S2CID 46799402.
295. ^ Baldursdóttir I. "Pressan.is". www.pressan.is. Archived from the original on 14 September 2016. Retrieved 26 August 2016.
296. ^ Dailey K (7 August 2012). "Formula v breastfeeding: Should the state step in?". BBC News. Archived from the original on 31 January 2016.
297. ^ Mason R (3 January 2014). "Parents 'face too much guilt over breastfeeding and work'". The Guardian. Archived from the original on 10 May 2017.
298. ^ Maxted A (18 February 2013). "Breastfeeding may be best, but bottles of formula milk aren't the end of the world". Archived from the original on 24 December 2015.
299. ^ Curzer M (4 August 2016). "You Can't Call Yourself A Feminist If You Shame Women Who Don't Breastfeed". HuffPost. Archived from the original on 2 October 2016.
300. ^ Graham-Harrison E (7 February 2014). "UAE law requires mothers to breastfeed for first two years". The Guardian. Archived from the original on 26 November 2016.
301. ^ "Forcing Mothers to Breastfeed Is No Way to Help Children – Huffington Post". 20 February 2014. Archived from the original on 23 December 2015.
302. ^ Lawrence & Lawrence 2015, pp. 210–211.
303. ^ "Bottle feeding is a woman's right, midwives told". BBC News. 12 June 2018. Retrieved 11 October 2018.
304. ^ "What is social marketing? | The NSMC". www.thensmc.com. Retrieved 27 November 2017.
305. ^ "Loving Support: Make Breastfeeding Work". United States Department of Agriculture. Archived from the original on 1 December 2017. Retrieved 28 November 2017.
306. ^ "Mother-Friendly Worksite Program". Texas Mother-Friendly Worksite Policy Initiative.
307. ^ "Fathers Supporting Breastfeeding". United States Department of Agriculture. Archived from the original on 28 April 2017.
308. ^ "Champions for Moms". Best for Babes Foundation. Archived from the original on 1 March 2018. Retrieved 28 November 2017.
309. ^ Center for Disease Control and Prevention (2013). "Strategies to Prevent Obesity and Other Chronic Diseases: The CDC Guide to Strategies to Support Breastfeeding Mothers and Babies" (PDF). US Department of Health and Human Services.
310. ^ Wakefield MA, Loken B, Hornik RC (October 2010). "Use of mass media campaigns to change health behaviour". Lancet. 376 (9748): 1261–1271. doi:10.1016/S0140-6736(10)60809-4. PMC 4248563. PMID 20933263.
311. ^ a b Moorhead J (15 May 2007). "Milking it". The Guardian.
312. ^ Williams Z (15 February 2013). "Baby health crisis in Indonesia as formula companies push products". The Guardian. Archived from the original on 2 May 2016.
313. ^ Kaplan DL, Graff KM (July 2008). "Marketing breastfeeding – reversing corporate influence on infant feeding practices". Journal of Urban Health. 85 (4): 486–504. doi:10.1007/s11524-008-9279-6. PMC 2443254. PMID 18463985.
314. ^ "Strategy 9. Addressing the Marketing of Infant Formula" (PDF). National Alliance for Breastfeeding Advocacy: Research, Education, and Legal Branch. Retrieved 14 January 2022.
315. ^ "Revised Ten Steps to Successful Breastfeeding" (PDF). Vanderbilt University Medical Center. Archived from the original (PDF) on 24 February 2021. Retrieved 29 July 2018.
316. ^ "Baby-Friendly USA". www.babyfriendlyusa.org. Retrieved 27 November 2017.
317. ^ a b Sen M (22 January 2018). "The Short-Lived Normalization of Breastfeeding on Television". Hazlitt. Retrieved 28 January 2018.
318. ^ Altorki S (1980). "Milk-kinship in Arab society: An unexplored problem in the ethnography of marriage". Ethnology. 19 (2): 233–244. doi:10.2307/3773273. JSTOR 3773273.
319. ^ Parkes P (October 2005). "Milk Kinship in Islam: Substance, Structure, History". Social Anthropology. 13 (3): 307–329. doi:10.1111/j.1469-8676.2005.tb00015.x.
320. ^ Bernard JY, Cohen E, Kramer MS (November 2016). "Breast feeding initiation rate across Western countries: does religion matter? An ecological study". BMJ Global Health. 1 (4): e000151. doi:10.1136/bmjgh-2016-000151. PMC 5321388. PMID 28588983.
321. ^ Burdette AM, Pilkauskas NV (October 2012). "Maternal religious involvement and breastfeeding initiation and duration". American Journal of Public Health. 102 (10): 1865–1868. doi:10.2105/AJPH.2012.300737. PMC 3490661. PMID 22897559.
322. ^ Stroope S, Rackin HM, Stroope JL, Uecker JE (March 2018). "Breastfeeding and the Role of Maternal Religion: Results From a National Prospective Cohort Study". Annals of Behavioral Medicine. 52 (4): 319–330. doi:10.1093/abm/kax013. PMID 30084894.
323. ^ Bernard JY, Rifas-Shiman SL, Cohen E, Lioret S, de Lauzon-Guillain B, Charles MA, et al. (June 2020). "Maternal religion and breastfeeding intention and practice in the US Project Viva cohort". Birth. 47 (2): 191–201. doi:10.1111/birt.12477. PMC 7245542. PMID 31884716.
324. ^ Abdulwadud OA, Snow ME (October 2012). "Interventions in the workplace to support breastfeeding for women in employment". The Cochrane Database of Systematic Reviews. 2012 (10): CD006177. doi:10.1002/14651858.CD006177.pub3. PMC 7388861. PMID 23076920.
325. ^ a b c "Support for Breastfeeding in the Workplace" (PDF). CDC. Retrieved 19 September 2018.
326. ^ Dinour LM, Szaro JM (April 2017). "Employer-Based Programs to Support Breastfeeding Among Working Mothers: A Systematic Review". Breastfeeding Medicine. 12 (3): 131–141. doi:10.1089/bfm.2016.0182. PMID 28394659.
327. ^ a b Black AS (18 January 2023). "Pregnant, nursing mothers gain employment rights protection". St. Louis American.`{{cite web}}`: CS1 maint: multiple names: authors list (link) CS1 maint: numeric names: authors list (link)
328. ^ a b Patient Protection and Affordable Care Act. Government Printing Office. Page 459.
329. ^ Landau E (9 April 2010). "Breastfeeding rooms hidden in health care law". CNN.
330. ^ Carter CM (19 April 2019). "How I Got My Employer to Acknowledge My Nursing Issue". Entrepreneur. Retrieved 21 June 2023.
331. ^ "The Federal Government Says, "Mother Knows Best": Expanded Protections for Pregnant and Nursing Workers Under Federal Law". JD Supra.
332. ^ a b "Sex discrimination – breastfeeding and expressing milk". www.infactcanada.ca. British Columbia Human Rights Commission. 1 August 2000.[dead link‍]
333. ^ "Policy on preventing discrimination because of pregnancy and breastfeeding". Ontario Human Rights Commission. 29 October 2014.
334. ^ "Creating a Breastfeeding Friendly Workplace" (PDF). Ontario Public Health Association. 2008.
335. ^ Saha MR, Ryan K, Amir LH (2015). "Postpartum women's use of medicines and breastfeeding practices: a systematic review". International Breastfeeding Journal. 10 (1): 28. doi:10.1186/s13006-015-0053-6. PMC 4625926. PMID 26516340.
336. ^ Marchesi C, Ossola P, Amerio A, Daniel BD, Tonna M, De Panfilis C (January 2016). "Clinical management of perinatal anxiety disorders: A systematic review". Journal of Affective Disorders. 190: 543–550. doi:10.1016/j.jad.2015.11.004. hdl:11380/1120657. PMID 26571104.
337. ^ "Improved breastfeeding rates. [Social Impact]. Improved breastfeeding rates through evidence-based guideline changes". SIOR, Social Impact Open Repository. Archived from the original on 5 September 2017. Retrieved 5 September 2017.

## Bibliography

[edit]

Scholia has a profile for breastfeeding (Q174876).

* Durham R (2014). Maternal-newborn nursing: the critical components of nursing care. Philadelphia: F.A. Davis Company. ISBN 978-0-8036-3704-7.
* Henry N (2016). RN maternal newborn nursing : review module. Stilwell, KS: Assessment Technologies Institute. ISBN 978-1-56533-569-1.
* Davidson M (2014). Fast facts for the antepartum and postpartum nurse : a nursing orientation and care guide in a nutshell. New York: Springer Publishing Company, LLC. ISBN 978-0-8261-6887-0.
* Lawrence RA, Lawrence RM (2015). Breastfeeding: A Guide for the Medical Professional. Elsevier Health Sciences. pp. 227–228. ISBN 978-0-323-39420-8.

## Further reading

[edit]

* Baumslag N, Michels DL (1995). Milk, money, and madness: the culture and politics of breastfeeding. Westport, Connecticut: Bergin & Garvey. ISBN 978-0-313-36060-2.
* Cassidy T, El Tom A, eds. (2015). Ethnographies of Breastfeeding: Cultural Contexts and Confrontations. Bloomsbury Publishing. ISBN 978-1-4725-6926-4. Scholarly essays on a variety of topics such as networks of milk sharing through Facebook, public-health guidelines on infant feeding and HIV in Malawi, and dilemmas involving breastfeeding and bonding for babies born from surrogate mothers.
* Halili HK, Che MN (June 2014). "Women's right to breastfeed in the workplace: legal lacunae in Malaysia". Asian Women. 30 (2): 85–108. doi:10.14431/aw.2014.03.30.2.85.
* Hausman BL (2014). Mother's Milk: Breastfeeding Controversies in American Culture. Taylor & Francis. ISBN 978-1-135-20826-4.

## External links

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Look up breastfeeding in Wiktionary, the free dictionary.

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