What is Phosphorus Deficiency? Is Phosphorus toxic?

Phosphorus is widely distributed in natural foods and also found in food additives as phosphate salts, used in processing for retaining moisture. A phosphorus deficiency is called hypophosphatemia, defined by blood levels that fall below the normal range. However, blood levels of phosphate do not necessarily show the total amount of phosphorus in the body, as most of it is stored in bones and teeth. The most common causes of deficiency are kidney problems or a condition called hyperparathyroidism, in which too much parathyroid hormone is released that causes phosphorus to exit the body through urine. Also, the overuse of aluminum-containing antacids can bind to phosphorus and increase the risk of a deficiency. White phosphorus is extremely toxic to humans, while other forms of phosphorus are much less toxic.

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