Zinc is essential to the synthesis of DNA and RNA, of proteins, insulin and sperm. The body needs zinc to metabolize carbohydrates, fats, protein and alcohol; to dispose of carbon dioxide; to make good use of Vitamin A. Zinc helps blood sugar get into the cells and helps insulin to work better. More than seventy different enzymes require Zinc to do their appointed work. Zinc boosts the immune system and makes wounds heal faster.