Alcohol and cardiovascular disease

Total recorded alcohol per capita consumption, in litres of pure alcohol.[1]

Excessive alcohol intake is associated with an elevated risk of alcoholic liver disease (ALD), heart failure, some cancers, and accidental injury, and is a leading cause of preventable death in industrialized countries.[2] Some studies have suggested that one drink per day may have cardiovascular benefits. However, these studies are controversial,[3] and the common view is that no level of alcohol consumption improves health.[4] There is far more evidence for the harmful effects of alcohol than for any beneficial effects.[5] It is also recognized that the alcohol industry may promote the unsubstantiated benefits of moderate drinking.[6]

## Contents

* 1 Alcohol intake and cardiovascular disease
* 2 Alcohol reduction
* 3 See
* 4 References
* 5 External links

## Alcohol intake and cardiovascular disease[edit | edit source]

Some early reviews showed that light alcohol consumption may have a protective effect on cardiovascular health. For instance, a meta-analysis from 2010 found that patients with cardiovascular disease who were light to moderate alcohol consumers, were less likely to suffer from cardiovascular and all-cause mortality.[7] However, the researchers warned against encouraging cardiovascular patients who do not regularly consume alcohol to start drinking due to lack of controlled intervention studies and evidence.[7]

Several possible mechanisms have been suggested for the cardioprotective effect of alcohol. These include glucose control, lipid metabolism, and metabolism as a whole.[8] However, another possible explanation is that the cardioprotective effect is only a confounding research result.[9] A logical possibility is that some of the alcohol abstainers in research studies previously drank excessively and had undermined their health. After they quit they were categorized as non-drinkers, which in turn lead to more sick people in the non-drinkers category. To test this hypothesis, a 2019 meta analysis has recategorized people accordingly. As a result, no benefit was found for alcohol consumption of any dosage, moreover, alcohol was detrimental to health even at low doses.[10]

The American Heart Association states that drinking too much alcohol increases health risks including cardiovasular disease precursors such as obesity, high blood pressure, high triglycerides and also heart attacks and strokes. They warn that "We’ve all seen the headlines about studies associating light or moderate drinking with health benefits and reduced mortality. Some researchers have suggested there are health benefits from wine, especially red wine, and that a glass a day can be good for the heart. But there’s more to the story. No research has proved a cause-and-effect link between drinking alcohol and better heart health.."[3]

## Alcohol reduction[edit | edit source]

It is well known that alcohol consumption increases the risk of hypertension. Hence, many clinical trials examined the effect of reduction in alcohol consumption on blood pressure. Systematic review and meta-analysis have shown that effect of alcohol reduction on blood pressure is dose dependent.[11]

I. For people who consumed 2 or fewer drinks per day, blood pressure was not significantly decreased when they reduced alcohol consumption close to abstinence.
II. For people who consumed 3 or more drinks per day, blood pressure was significantly decreased when they reduced alcohol consumption close to abstinence.
III. For people who consumed 6 or more drinks per day, reduction rate on blood pressure was the strongest when they reduced alcohol consumption close to abstinence.
IV. The effect of alcohol reduction on blood pressure is still unclear for women and hypertensive patients who consume less than three drinks per day due to limited clinical trials.

## See[edit | edit source]

* French paradox
* Long-term effects of alcohol consumption

## References[edit | edit source]

1. ↑ World Health Organization (2004). Global Status Report on Alcohol 2004 (PDF). Geneva. ISBN 978-92-4-156272-0.
2. ↑ Centers for Disease Control and Prevention (CDC) (2004). "Alcohol-attributable deaths and years of potential life lost--United States, 2001". MMWR. Morbidity and Mortality Weekly Report. 53 (37): 866–870. PMID 15385917. Archived from the original on 2019-03-22. Retrieved 2022-10-11.
3. ↑ 3.0 3.1 American Heart Association (2020). "Is drinking alcohol part of a healthy lifestyle?". American Heart Association. Archived from the original on 2018-07-24. Retrieved 2022-10-11.
4. ↑ Burton, Robyn; Sheron, Nick (September 2018). "No level of alcohol consumption improves health". The Lancet. 392 (10152): 987–988. doi:10.1016/S0140-6736(18)31571-X. PMID 30146328. S2CID 52075453. Archived from the original on 2022-11-01. Retrieved 2022-10-11.
5. ↑ Fekjær, Hans Olav (December 2013). "Alcohol—a universal preventive agent? A critical analysis". Addiction. 108 (12): 2051–2057. doi:10.1111/add.12104. ISSN 0965-2140. PMID 23297738. Archived from the original on 2022-10-06. Retrieved 2022-10-11.
6. ↑ Casswell, Sally (April 2013). "Vested interests in addiction research and policy. Why do we not see the corporate interests of the alcohol industry as clearly as we see those of the tobacco industry?: Alcohol corporate interests compared with tobacco". Addiction. 108 (4): 680–685. doi:10.1111/add.12011. PMID 23496067. Archived from the original on 2022-08-23. Retrieved 2022-10-11.
7. ↑ 7.0 7.1 Costanzo, S; Di Castelnuovo, A; Donati, MB; Iacoviello, L; de Gaetano, G (2010). "Alcohol consumption and mortality in patients with cardiovascular disease: a meta-analysis". Journal of the American College of Cardiology. 55 (13): 1339–1347. doi:10.1016/j.jacc.2010.01.006. PMID 20338495.
8. ↑ Fragopoulou, E; Choleva, M; Antonopoulou, S; Demopoulos, CA (2018). "Wine and its metabolic effects. A comprehensive review of clinical trials". Metabolism: Clinical and Experimental. 83: 102–119. doi:10.1016/j.metabol.2018.01.024. PMID 29408458. S2CID 29149518.
9. ↑ Roerecke, Michael; Rehm, Jürgen (2014-10-21). "Alcohol consumption, drinking patterns, and ischemic heart disease: a narrative review of meta-analyses and a systematic review and meta-analysis of the impact of heavy drinking occasions on risk for moderate drinkers". BMC Medicine. 12 (1): 182. doi:10.1186/s12916-014-0182-6. ISSN 1741-7015. PMC 4203905. PMID 25567363. Archived from the original on 2022-11-11. Retrieved 2022-10-11.
10. ↑ Stockwell, Tim; Zhao, Jinhui; Panwar, Sapna; Roemer, Audra; Naimi, Timothy; Chikritzhs, Tanya (March 2016). "Do "Moderate" Drinkers Have Reduced Mortality Risk? A Systematic Review and Meta-Analysis of Alcohol Consumption and All-Cause Mortality". Journal of Studies on Alcohol and Drugs. 77 (2): 185–198. doi:10.15288/jsad.2016.77.185. ISSN 1938-4114. PMC 4803651. PMID 26997174.
11. ↑ Roerecke, M; Kaczorowski, J; Tobe, SW; Gmel, G; Hasan, OSM; Rehm, J (2017). "The effect of a reduction in alcohol consumption on blood pressure: a systematic review and meta-analysis". The Lancet. Public Health. 2 (2): e108–e120. doi:10.1016/S2468-2667(17)30003-8. PMC 6118407. PMID 29253389.

## External links[edit | edit source]

* USDA Dietary Guidelines for Americans 2005: Chapter 9 Alcoholic Beverages
* Alcohol and heart health: Separating fact from fiction Archived 2022-10-03 at the Wayback Machine, Johns Hopkins Medicine

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