Zinc is an important mineral for the absorption of nutrients and is a component of dozens of enzymes including insulin. It is necessary for the reproductive system and the prostate gland. It enhances the senses of taste and smell. It works with vitamin C in the production of collagen, and is necessary for protein metabolism. Because of this it greatly assists in the healing of wounds. Without zinc the absorption of vitamins A and E is impaired. Zinc is also involved in the synthesis of DNA. It is one of the best minerals to take in times of sickness because it attacks viruses directly. Sources include meat, fish, eggs, chicken, mushrooms, seeds, and soybeans.