Zinc, New RDA* 10 mg
The human need for zinc is small, but its role in growth and well-being is enormous, starting even before birth. The entire body of a normal man weighing 70 kg may contain 1.4 to 2.3 g of zinc. Zinc is present in small amounts in all tissues. The bones, teeth, and the pancreas contain slightly higher amounts of zinc than other tissues. Whole blood contains about 0.7 mg/100 ml, while blood serum or plasma contains 0.1 mg/100 ml.
Zinc is a bluish-white, metallic element. It is present in the body mostly in combination with other constituents of the body.
Zinc is present in the earth’s crust and in seawater. Zinc is found in all plant and animal tissues, particularly inside the nuclei.
*Sourced from EFSA WEBSITE