HealthAid Vitamin D3 200IU Drops 15ml Vitamin D3 is a fat soluble vitamin that contributes to the normal function of the immune system, absorption/utilisation of Calcium and Phosphorous, maintenance of normal bones, normal muscle function, maintenance of normal teeth, and also contributes to normal blood Calcium levels. Together with Calcium, Vitamin D also helps reduce the loss of bone mineral in post-menopausal women. What Are Vitamin D3 Drops For? Contribute to normal absorption and utilization of calcium Contribute to the maintanance of normal bones and muscle function Contribute to the maintanance of strong and healthy teeth Contribute to the maintanance of normal immune function Has a role in the process of cell division When Should I Take Vitamin D3 Drops? Vitamin D3 drops can be taken on a daily basis to ensure adequate Vitamin D intake, and to help maintain healthy bones and teeth.