Urine phosphorus

The total amount of phosphorus in the adult body is 400-800g, which accounts for about 1% of the adult's body weight and 1/4 of the total body minerals. Among them, 80% to 85% together with calcium constitute bone salts (hydroxyapatite [Ca2 (PO4) 2] 3 · Ca (OH) 2) involved in forming bones and teeth. The remaining about 20% are distributed in various soft tissues in the form of organic phosphate compounds. Phosphate participates in various biologically active substances such as proteins, nucleic acids, nucleotides, and phospholipids, and has a wide range of functions in the body. Only a very small part of phosphorus is present in body fluids as inorganic phosphate. The human body consumes 1.0-1.5 g of phosphorus every day. The phosphorus that the human body can absorb and use are all organic phosphate compounds such as phosphate esters and phospholipids. Phosphorus is excreted by the intestines and kidneys, and the renal excretion accounts for about 60% of the total excretion.