Phosphorus is a mineral colleague of calcium within the body. Calcium by itself cannot be responsible for good teeth and bones or nourish the brain and nerves. A proper balance of phosphorus must be present in the bloodstream for the effective performance of these tasks.An adult human body contains about 400-700 g of phosphorus as phosphate At least two-third of this amount is found in chemical combination with calcium in the bones and teeth, and the rest in other tissues. Phosphorus is essential for the proper utilization of not only calcium but also other minerals like iron, magnesium, potassium, and sodium.