Contributes in the protection of cells from oxidative stress (zinc, selenium, vitamins B2, C*), the normal synthesis of cysteine (vitamin B6), in maintaining the normal condition of hair and skin (zinc, biotin*) & the normal condition of the nails (zinc, selenium*), in the normal synthesis of proteins and the normal metabolism of fatty acids and carbohydrates (zinc*) & functioning of the immune system (vitamins B, C, zinc*)