Trace mineral;

The minerals which are required less than 100mg per day called trace minerals. They are needed in very small amount.

Copper:

Copper is one of the trace minerals, found in various cells and tissues of the body. It is part of many enzymes and is helpful in the absorption and utilization of iron, especially during formation of hemoglobin.

The RDA for copper is 900micro-gram/day for adults. Clinical markers of copper deficiency include anemia, bone abnormalities and depigmentation of hair.

If taken in excessive amount, copper toxicity can lead to vomiting, nausea, diarrhoea and hepatic disease ( due to accumulation of copper in liver ).

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https://nutritionalstatus0303.blogspot.com/2021/04/trace-mineral-copper-iodine-iron.html