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Summary
Commercial multimineral hair analysis is unreliable, with significant variations in results and interpretations between labs. This practice is unscientific, costly, and potentially misleading for patient health management.
Area of Science:
- Clinical Chemistry
- Toxicology
- Nutritional Science
Background:
- Multimineral hair analysis is commercially offered for diagnosing nutrient imbalances and health conditions.
- The accuracy and reliability of commercial hair analysis services are frequently questioned.
Purpose of the Study:
- To evaluate the consistency and validity of results from commercial multimineral hair analysis laboratories.
- To assess the interpretations and recommendations provided by these laboratories.
Main Methods:
- Identical hair samples from two healthy individuals were submitted to 13 commercial laboratories.
- Results, interpretations, and supplement recommendations were analyzed for variability and scientific basis.
Main Results:
- Significant discrepancies were observed in mineral levels reported for identical samples within and between laboratories.
- Laboratories disagreed on normal ranges and provided inconsistent, often alarming, computerized interpretations.
- Supplement recommendations varied widely, lacking standardization.
Conclusions:
- Commercial multimineral hair analysis is scientifically unsound, leading to economically wasteful and potentially harmful patient management.
- The practice is not supported by scientific evidence and may be considered illegal due to unsubstantiated health claims.