Vitamin D3 contributes to the normal functioning of the immune system, the normal absorption/utilization of calcium and phosphorus, the normal blood calcium level, and the maintenance of healthy bones and teeth. Vitamin D plays a role in cell division.      

Vitamin D3 contributes to the normal functioning of the immune system, the normal absorption/utilization of calcium and phosphorus, the normal level of calcium in the blood and the maintenance of healthy bones and teeth. Vitamin D plays a role in cell division.