Selenium and zinc help protect cells against oxidative stress, as well as vitamins C and E. Selenium contributes to the maintenance of normal hair and nails. Selenium as well as vitamins A, C contribute to the normal functioning of the immune system. Vitamin A and zinc contribute to the maintenance of normal skin and vision. Vitamin C contributes to the normal formation of collagen for normal skin function. Zinc contributes to the normal metabolism of vitamin A.

Nutritional table