In the body 85% of phosphorus is found in the skeletal system. The other 15% in cells forming nucleic acids such as DNA. It is also used in the metabolism. Calcitonin regulates the phosphate blood levels.

Hypophoshatemia (low phosphate) can be caused by high calcium levels and low vitamin D that is needed for its absorption. Symptoms include muscle weakness, brittle bones, seizures and coma.

Hyperphoshatemia (high phosphate) can be caused by low calcium and kidney failure. It can also be caused by excessive calcium-phosphorus crystals in the blood. These are in turn caused by the excessive consumption of Oxalic Acids. This can cause a heart attack or stroke.