Healthvit Calcium Citrate Tablet is a readily digested and absorbed form of Calcium. The minerals and Vitamin D are added because of their essential role in bone metabolism. It is necessary for normal functioning of nerves, cells, muscle, and bone. If there is not enough Calcium in the blood, then the body will take Calcium from bones, thereby weakening bones. Giving the right amount of Calcium it ensures the building and keeping strong bones.