Elemental Hair Analysis
Trace element hair analysis is a controversial diagnostic tool. Hair is tested for levels of minerals such as zinc or magnesium. Supporters of hair analysis believe that an excess or deficiency in body mineral levels, revealed by the hair test, are possible causes of health problems.-
Features
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Hair analysis uses atomic spectroscopy. This technique tests for minerals in other substances. The hair is sent to a lab, which burns the hair. The hair turns different colors, each corresponding to a mineral. The quantity of each color is measured against a scale to determine if the mineral level falls within a healthy range.
Uses
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Supporters of hair analysis claim that the test provides an early warning for various physical and mental conditions. For example, zinc is essential for insulin production, potassium for transporting nutrients, and magnesium for muscle function. Also, claims are made for the test as a method of discovering toxic body levels of mercury, arsenic and lead --- just three of the heavy metals that can cause ill health.
Considerations
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There is substantial opposition to trace element hair analysis. The American Medical Association advises against taking the test, as the results are frequently analyzed by people without medical training. This has led to excess supplement intake, or in some cases a dangerous decreases in consumption of certain minerals. Dr. Stephen Barratt at Quackwatch also points out that the commercial labs don't use consistent measurement scales, so results may be meaningless.
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