Hair analysis (alternative medicine)

Alternative therapy
Benefits| Placebo
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## Contents

* 1 Background
* 2 Inconsistent results
* 3 References
* 4 External links

## Background

In hair analysis the levels of minerals and metals in the hair sample are analyzed.[1] Alternative medicine advocates state that this allows them to diagnose mineral deficiencies, heavy metal poisoning, and that autistic people have anomalous hair test results, a eugenicist belief.[2]

As of 1998, of the nine commercial 'nutritional hair analysis' laboratories operating in the United States , three indicated that they primarily used ICP-MS, four primarily used ICP-AES, and one reported use of directly coupled plasma (DCP)-AES. DCP-AES is an older technique that is potentially less stable than ICP-AES. On average, these laboratories measure 26 elements per hair sample. Nutritional hair analysis laboratories require between 0.3 and 1 gram for the AES methods, and 0.25-1 gram for ICP-MS."[3] The amount selected depends on the analytical method used, but sample sizes in the 50 milligram range are reported.[4]

## Inconsistent results

In 1983, a New York Times article criticized the industry for inconsistent results, fraudulent practices, unscientific aspects, and being "a consumer ripoff that in some cases is dangerous".[5]

In 1984, the FTC successfully obtained an injunction to stop a hair analysis laboratory's false claims to the public, on the basis that it was "inaccurate, worthless to consumers and possibly harmful because it might prevent patients from seeking proper medical attention".[6]

In a 1985 investigation of 13 commercial laboratories published in the Journal of the American Medical Association noted inconsistencies and questionable content in their reports and recommendations:[7]

Hair samples from two healthy teenagers were sent under assumed names to 13 commercial laboratories performing multimineral hair analysis. The reported levels of most minerals varied considerably between identical samples sent to the same laboratory and from laboratory to laboratory. The laboratories also disagreed about what was "normal" or "usual" for many of the minerals. Most reports contained computerized interpretations that were voluminous, bizarre, and potentially frightening to patients. Six laboratories recommended food supplements, but the types and amounts varied widely from report to report and from laboratory to laboratory. Literature from most of the laboratories suggested that their reports were useful in managing a wide variety of diseases and supposed nutrient imbalances. However, commercial use of hair analysis in this manner is unscientific, economically wasteful, and probably illegal.

The author did not explicitly rule out further diagnostic uses for hair mineral analyses in the future, but listed three issues that prevent hair mineral tests provided by the sampled labs from being accepted as scientifically sound and clinically viable: a lack of standardization and general agreement on the techniques by which hair mineral content was to be determined, a lack of general consensus on the meaning of hair mineral content analyses, and a lack of agreement on treatments for putative imbalances.[7]

The labs suggested a variety of 'abnormal conditions' were indicated by the hair samples, none of which were actually present. These varied between samples from the same test subjects.[8]

In 2001 a follow-up investigation was conducted to see if things had improved since the 1985 investigation. The authors concluded:[9]

Hair mineral analysis from these laboratories was unreliable, and we recommend that health care practitioners refrain from using such analyses to assess individual nutritional status or suspected environmental exposures. Problems with the regulation and certification of these laboratories also should be addressed.

Tests have shown that levels of heavy metal in the body may not be reflected by the levels in the hair.[10]

The American Medical Association has stated and restated twice in the last two decades their position: "The AMA opposes chemical analysis of the hair as a determinant of the need for medical therapy and supports informing the American public and appropriate governmental agencies of this unproven practice and its potential for health care fraud."[11]

In 2011 a comprehensive review was published of the scientific literature on hair elemental (mineral) analysis and is the most up to date resource on the current status. With regard to commercial practices offering services to individuals, assuming analysis is conducted correctly and compared to a suitable control population (which generally is not the case), it concluded: "offering a diagnosis as to the cause of an abnormal concentration is currently not feasible and is difficult to see as realistic".[1]

## References

1. ↑ 1.0 1.1 I.M. Kempson & E. Lombi, "Hair analysis as a biomonitor for toxicology, disease and health status" Chemical Society Reviews, 2011 doi:10.1039/C1CS15021A.
2. ↑ Lathe, Richard; Le Page, Michael (June 2003). "Toxic metal clue to autism". New Scientist. https://www.newscientist.com/article/dn3842-toxic-metal-clue-to-autism.html.
3. ↑ Eastern Research Group. Appendix C. SUMMARY REPORT, HAIR ANALYSIS PANEL DISCUSSION: EXPLORING THE STATE OF THE SCIENCE. ATDSR. June 12—13, 2001
4. ↑ Eastern Research Group. SECTION 3 3.4 Other Methodological Considerations. SUMMARY REPORT, HAIR ANALYSIS PANEL DISCUSSION: EXPLORING THE STATE OF THE SCIENCE. ATDSR. June 12—13, 2001
5. ↑ Jane Brody. Article about hair analysis clinics. New York Times October 26, 1983
6. ↑ "Hair analysis 'frightening'". Spokane Chronicle: p. 10. August 23, 1985. https://news.google.com/newspapers?id=Av5LAAAAIBAJ&pg=5889,1789340.
7. ↑ 7.0 7.1 Barrett, S. (1985). "Commercial hair analysis. Science or scam?". JAMA: The Journal of the American Medical Association 254 (8): 1041–5. doi:10.1001/jama.254.8.1041.
8. ↑ "Hair Analysis Seen Harmful by Doctor". The Victoria Advocate. Associated Press. August 23, 1985. https://news.google.com/newspapers?id=XbRhAAAAIBAJ&pg=4834,5871809.
9. ↑ Seidel, S. (2001). "Assessment of Commercial Laboratories Performing Hair Mineral Analysis". JAMA: The Journal of the American Medical Association 285: 67–72. doi:10.1001/jama.285.1.67. PMID 11150111.
10. ↑ Teresa, M; Vasconcelos, S; Tavares, H (1997). "Trace element concentrations in blood and hair of young apprentices of a technical-professional school". Science of the Total Environment 205 (2–3): 189–99. doi:10.1016/S0048-9697(97)00208-8. PMID 9372630.
11. ↑ Hair analysis: A potential for medical abuse. Policy number H-175.995,(Sub. Res. 67, I-84; Reaffirmed by CLRPD Rep. 3 - I-94)

## External links

* AETNA Clinical Policy Bulletin: Hair Analysis
* Quackwatch: Commercial Hair Analysis: A Cardinal Sign of Quackery

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