Dicalcium Phosphate is the calcium phosphate with the formula CaHPO4 and its dihydrate. It is mainly used as a nutrient supplement in breakfast cereals, enriched flour, and in the form of calcium-mineral tablets. Calcium plays a role in many important processes including the development and maintenance of healthy bones and teeth, muscle contraction, blood clotting, energy production, and the function of the nervous and digestive systems.