Hair Mineral Analysis
Hair Mineral Analysis can be a valuable and accurate tool for assessing exposure to toxic metals such as lead, mercury, arsenic, cadmium and others. However, it has been shown to be of little value when assessing nutrient status in the body.
Research has consistently shown that hair is the most sensitive method of testing for exposure to toxic metals. In fact, blood and urine analysis will often show normal levels where hair analysis exposes toxicity. This is because elements are deposited into the hair and analysis shows cumulative exposure over the past three months, which is indicative of toxicity built up in other body tissues. Looking at the blood or urine, on the other hand, only shows very recent exposure since most metals do not circulate in the blood for more than a couple of days before being excreted in the urine or feces, or deposited in tissues such as bone.