Zinc [Immune] is a trace mineral that has been found to be extremely important to overall health. More zinc is found in the body than any other trace element except for iron. Relatively large amounts are found in bone and muscle, and its also prevalent in the prostate and retina. It is involved in sugar metabolism and seems to be easily lost from the system. Pregnant and lactating women require more zinc than other women. This product is derived from zinc gluconate for more efficient absorption. For maximum benefit, it is combined in a rich, natural base of kelp plant, alfalfa herb and thyme herb. Each tablet contains 25 mg of zinc, which is 166 percent of the Daily Value.