Copper
Deficiency
can also occur in people who supplement with zinc without also increasing copper
intake. Zinc interferes with copper absorption.Sandstead HH. Requirements
and toxicity of essential trace elements, illustrated by zinc and copper. Am
J Clin Nutr 1995;61(suppl):62S–4S.
Health
consequences of zinc-induced copper deficiency can be quite serious.Broun
ER. Greist A, Tricot G, Hoffman R. Excessive zinc ingestion. A reversible cause
of sideroblastic anemia and bone marrow depression. JAMA 1990;264:1441–3.
In
the absence of copper supplementation, vitamin C supplementation has also been
reported to mildly impair copper metabolism.Jacob RA, Skala JH, Omaye ST,
Turnlund JR. Effect of varying ascorbic acid intakes on copper absorption and
ceruloplasmin levels of young men. J Nutr 1987;117:2109–15.
Brain
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