Copper interactions with other nutrients
Copper to zinc ratio
Zinc and copper compete with each other for absorption. Excess zinc intake for prolonged periods can lead to copper deficiency. Altered copper to zinc ratios may play a role in several disorders including heart disease and some types of cancer including those of the breast, lung and gastrointestinal tract. There is some suggestion that this may be useful as a diagnostic test. Copper zinc ratios also seem to be high in violence-prone males .
Copper-zinc superoxide dismutase levels seem to be altered in rheumatoid arthritis. Those with the disease have higher serum copper/zinc superoxide dismutase levels than those without.
Other vitamins and minerals
Iron and copper interact in several ways. Copper deficiency alters iron metabolism, causing it to accumulate in the liver. Excess iron can lead to copper deficiency. High molybdenum intakes may increase copper excretion. High doses of vitamin C may alter copper metabolism and lead to deficiency states.
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