Bio D3 capsule is fortified with calcitriol which is a vitamin D supplement. The capsules can help maintain calcium levels and help the body use calcium and phosphate to maintain healthy bones. Vitamin D3 is essential for the proper growth and development of the body. It is synthesized within the body after exposure to sunlight and is essential for many important functions of the human body. Vitamin D3 also helps the body to metabolize calcium and phosphate in the body. Bio D3 is used for treating conditions in which calcium metabolism is disturbed. It is also used in disorders associated with Vitamin D deficiency and in calcium malabsorption. It helps in the development of bone mass, provide relief from muscle and bone pain, and also enhances metabolism. This is a dietary supplement that should be taken to avoid calcium disorders.