The body requires zinc for maintenance of health and a strong immune system. Studies have shown zinc has significant anti-viral properties, especially for the common cold. The adult daily supplement range for zinc is 15-30 mg. Daily dosage should not exceed 100 mg. Egg yolks, fish, soy products and whole grains are excellent dietary sources.
Acute toxicity is rare.
Do not take zinc supplements if you are allergic to preparations containing zinc. You should always advise your physician of all over the counter medications you are taking. This includes all vitamins, minerals, supplements and herbs. There have been no drug interactions identified for this mineral. Copper, calcium and iron can interfere with zinc absorption if taken in high doses.