− | Zinc has many essential functions in the body, it is a co-factor or catalyst in at least 200 zinc-containing enzymes that are involved in [[Digestibility of Protein|protein]], [[Digestibility of Carbohydrate|carbohydrate]], nucleic acid and [[Digestibility of Fat|lipid]] metabolism<ref>Valee, BL, Falchuk, KH (1993). “The biochemical basis of zinc physiology”. Physiol. Rev. 73:79-118.</ref>. | + | Zinc has many essential functions in the body, it is a co-factor or catalyst in at least 200 zinc-containing enzymes that are involved in [[Digestibility of Protein|protein]], [[Digestibility of Carbohydrates|carbohydrate]], nucleic acid and [[Digestibility of Fat|lipid]] metabolism<ref>Valee, BL, Falchuk, KH (1993). “The biochemical basis of zinc physiology”. Physiol. Rev. 73:79-118.</ref>. |