Having a healthy immune system requires specific nutrients. Zinc is one of those key nutrients important for immunity. Zinc may help to support the health and development of certain immune cells, including an especially important immune cell called T-lymphocytes. Zinc may also help support healthy immunity by providing antioxidant protection to immune cells from toxic free radical compounds. Beyond immunity, zinc may also help support healthy levels of enzymes that are critical for normal, healthy growth and tissue healing. Additionally, zinc also is known to play a role in the healthy functioning of the prostate gland and the male reproductive system. Zinc can be difficult to obtain from the typical diet, so a daily supplement may help to ensure that you receive its many health benefits.