Be careful with phosphorus, too much can cause problems:
http://www.umm.edu/altmed/articles/phosphorus-000319.htmToo much phosphate can lead to diarrhea and calcification (hardening) of organs and soft tissue, and can interfere with the body's ability to use iron, calcium, magnesium, and zinc. Athletes and others taking supplements that contain phosphate, should only do so very occasionally and with the guidance and direction of a health care provider.