Zinc is an essential mineral that is found in almost every cell. It stimulates the activity of approximately 100 enzymes, which are substances that promote biochemical reactions in your body (1,2). Zinc supports a healthy immune system (3,4), is needed for wound healing (5), helps maintain your sense of taste and smell (6), and is needed for DNA synthesis (2). Zinc also supports normal growth and development during pregnancy, childhood, and adolescence (7, 8).