CALCIUM PHOSPHORUS is a palatable cheese-flavored source of supplemental calcium and phosphorus for dogs and cats. When your pet requires additional calcium and phosphorus, PetAg CALCIUM PHOSPHORUS provides these two minerals in a biologically available formulation. CALCIUM PHOSPHORUS supplies calcium and phosphorus in a ratio similar to the AAFCO recommendations for cats and dogs. The ratio of calcium and phosphorus in the diet is important for the efficient utilization of the minerals by dogs and cats. CALCIUM PHOSPHORUS is fortified with vitamin D necessary for calcium and phosphorus utilization by the animal. Calcium, phosphorus and vitamin D are essential nutrients for proper bone and teeth development. Correct supply of these nutrients might help prevent development of osteoporosis in older dogs and cats.