For those above the age of 45 years and for pregnant ladies.Calcium is an essential mineral for healthy bones and teeth. It plays a major role in muscle function, healthy bone structure, blood clotting, and nerve signals. Vitamin D3 is required in the process of absorbing calcium and utilizing it to complete treatment in building bones, teeth, and muscle functions Magnesium citrate is an essential mineral that plays a role in the biochemical reaction to regulate calcium levels with vitamin D3 and their proper use Zinc citrate is an essential mineral that is important for many body functions and is used to support, protect and strengthen the immune system If there is a deficiency of vitamin K2 in the body, it makes you vulnerable to many chronic diseases