Zinc is a mineral that is essential for human health, as it is involved in many cellular processes, including DNA synthesis, protein synthesis, and cell division. It also plays a significant role in immune system function, wound healing, and vision. Zinc is found naturally in many different foods, particularly oysters, meat, nuts, seeds, and legumes. Supplements are also available for individuals who may be deficient in zinc. While zinc is an essential nutrient, too much zinc can be harmful and lead to adverse health effects.