Zinc

What role does it play in the organism?
Zinc is a trace element of vital importance. It plays a key role in the stabilisation of cell membranes; it ensures the configuration of nucleic acids (DNA, RNA) storing information. It is essential for immune functioning, hormone production and with insulin to normal glucose metabolism. There is a need for zinc for the good health of the outer skin and also for wound healing.

What foodstuffs contain it?
Good dietary sources of zinc are meat and legumes, however the bioavailability of legumes is inappropriate owing to their high fibre content.

Who are exposed to zinc deficiency and what does this deficiency state cause?
Zinc deficiency is caused mainly by inadequate dietary intake. According to Hungarian data, zinc deficiency is to be reckoned with mainly in women, but value-limit deficiency mentioned for vitamins (when the intake is just at or slightly below the required level) is frequent in men too. In the case of a zinc deficiency, dermatitis, hair loss, immune disorders, backwardness in growth, loss of appetite and the reduced functioning of the sex glands occur.

What is the recommended intake for zinc?
The daily requirement is 3-10 mg for children depending on age, and 15 mg for adults.

What are the health risks of excessive zinc intake?
An intake significantly (many times) exceeding the requirement may cause copper deficiency, vomiting and diarrhoea.