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Hair Analysis > Is blood as good an indicator of Mineral status as hair?

IS BLOOD AS GOOD AN INDICATOR OF MINERAL STATUS AS HAIR?

Blood and serum do contain minerals, but they may not be completely representative of the body's mineral storage. In many cases, the serum level of minerals is maintained at the expense of tissue concentration (homeostatic mechanisms). Serum concentrations may fluctuate with the manner in which the sample is taken, emotional changes, the time of day the blood is drawn, or foods eaten prior to taking sample. For example;

* Thirty to forty days following an acute exposure, elevated serum levels of lead may be undetectable. This is due to the body's removing the lead from the serum as a protective measure and depositing the metal into such tissues as the liver, bones, teeth and hair.

* Calcium loss from the body can become so advanced that severe osteoporosis can develop without any appreciable changes noted in the calcium levels in a blood test.

* Iron deficiency symptoms can be present long before low levels can be detected in serum.

There is much clinical research to show that for many elements tissue can more closely reflect body mineral stores than blood and urine.

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