Chapter

Zinc

From Human Nutrition by Human Nutrition

Concepts

1. Zinc Functions

   "Zinc is a cofactor for over two hundred enzymes in the human body and plays a direct role in RNA, DNA, and protein synthesis. Zinc also is a cofactor for enzymes involved in energy metabolism. As the

2. Dietary Intakes

   "Dietary Reference Intakes for Zinc: Infant (0–6 months): RDA 2 mg/day*, UL 4 mg/day. Infants (6–12 months): RDA 3 mg/day, UL 5 mg/day. Children (1–3 years): RDA 3 mg/day, UL 7 mg/day. Children (4–8 y

3. Food Sources

   "Zinc content of various foods: Oysters, 3 oz., 74 mg zinc, 493 percent Daily Value; beef, chuck roast, 3 oz., 7 mg, 47 percent; crab, 3 oz., 6.5 mg, 43 percent; lobster, 3 oz., 3.4 mg, 23 percent; po