Immuvit Vitamin D3 is a dietary supplement to strengthen the body's natural defenses and the good condition of muscles and bones. Vitamin D3 is a fat-soluble vitamin that is produced in the skin upon exposure to sunlight and contributes to: the normal function of the immune system the normal absorption/utilization of calcium and phosphorus and maintenance of normal calcium levels in the blood the maintenance of normal condition of bones, muscles and teeth the process of cell division
