Calcium 600 D3 Zn K is a supplement for effective support of the musculoskeletal and cardiovascular systems.Calcium 600 D3 Zn K contains: Calcium – is one of the key minerals in the body.It supports the musculoskeletal and the central nervous systems and is essential for many body processes Zinc –is an essential microelement and it plays an important role in glucose metabolism. It is also a component of many enzymes Vitamin D –enhances absorption of calcium, strengthens the musculoskeletal system, has numerous effects on cells within the immune system Vitamin k-helps to prevent osteoporosis improves calcium absorption protects blood vessel