The main function of calcitonin is A: increase blood calcium and blood phosphorus B: decrease blood calcium and blood phosphorus C: decrease blood calcium and increase blood phosphorus D: increase blood calcium and decrease blood phosphorus E: involve in the normal calcium regulation

phytates in food can increase the bioavailability of phosphorus in body

The average daily consumption of Phosphorus by adults is 1,200 to 1,600 milligram.

phytates in food can increase the bioavailability of phosphorus in body A: 正确 B: 错误

The average daily consumption of Phosphorus by adults is 1,200 to 1,600 milligram. A: 正确 B: 错误

Rickets（ ） a childhood disease caused by deficiency of vitamin D and sunlight associated with impaired metabolism of calcium and phosphorus

All organic compounds contain the element A: Phosphorus B: Nitrogen C: Sulfur D: Carbon E: Oxgen

In the fetal body composition, about half of the protein and more than half of the energy, calcium and phosphorus are increased in the last quarter of pregnancy.

_____ inhibits the absorption of calcium? A: Vitamin D B: Fatty acid C: Certain kinds of amino acids D: Calcium to phosphorus ratio in food

In the fetal body composition, about half of the protein and more than half of the energy, calcium and phosphorus are increased in the last quarter of pregnancy. A: 正确 B: 错误