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Zinc has the potential to be toxic if too much is taken.
Excess zinc can result in copper deficiency, which is associated
with anemia.
Zinc supplementation is common as the nutrient is available
in many over-the-counter products. Physicians should be aware
of the potential for zinc-induced copper deficiency and should
recoagnize that it is an avoidable and manageable condition.
Canadian
Medical Association Journal July 22, 2003; 169 (2) (Full
Text Article)
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