There are about two grams of zinc in the body where it is highly concentrated in the hair, skin, eyes, nails and testes. It is a constituent of many enzymes involved in mertabolism.
Zinc is a precious mineral. Our need for this mineral is small but its role in growth and well-being is enormous, starting before birth. It is needed for healthy skin and hair, proper healing of wounds, successful pregnancies and male virility. It plays a vital role in guarding against diseases and infection. It is needed to transport vitamin A to the retina. There are 156 enzymes that require zinc for their functioning. It has long been known that growth and sexual maturity depend on zinc.
The main dietary sources of zinc are milk, liver, beans, meat, whole grains, nuts, and seeds. The recommended dietary allowance of zinc is 15 mg. daily. Deficiency can result in weight loss, skin diseases, loss of hair, poor appetite, diarrhoea and frequent infection. Those suffering from rheumatoid arthritis may have a zinc deficinecy. Heavy drinks lose a lot of zinc in their urine.