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Phosphorus is a mineral that may make up only 1 percent of total body weight, but it is still found in every cell of the body. Most of the phosphorus is in the bones and teeth, but it also has an important role in helping the body utilize fats and carbohydrates and in synthesizing protein. It is also critical for the production of ATP, a molecule the body needs to store energy.
Phosphorus has a relationship with the B vitamins and assists in muscle contractions, kidney function, nerve conduction, and maintaining a regular heart beat. There is limited research on any relationship between phosphorus and prostate health. One published in 2000 noted that low phosphorus levels lead to an increase in plasma levels of vitamin D, which is a plus because vitamin D has been shown to protect against prostate cancer and BPH. Therefore, it appears that keeping phosphorus levels low helps reduce the risk of developing prostate cancer and BPH.
The recommended intake of phosphorus is 700 mg daily, and few people have a deficiency since this mineral is a critical component of all living things. Fish and dairy are very good sources; beans and legumes are good as well, but because we do not have specific enzymes that free phosphorus from these plants, we get only about 50 percent of the available mineral from these foods.
Reference
Kapur S. A medical hypothesis: Phosphorus balance and prostate cancer. Cancer Investigation 2000; 18(7): 664-69.
