Water-retaining agent is a kind of food additive, which is usually used to improve the water-holding capacity and taste of food. However, long-term intake of water-retaining agent may have adverse effects on human body.

1, some chemical components in the water-retaining agent, such as phosphate and polyphosphate, will affect the calcium absorption of human body. When the human body ingests too much phosphorus, it will combine with calcium in the intestine to form calcium orthophosphate which is insoluble in sleep, thus reducing the absorption rate of calcium. Long-term intake of water retaining agent will lead to bone problems such as osteoporosis and fracture.

2. The water-retaining agent also increases the burden on the kidneys. The kidney is an important excretory organ in the human body, which is responsible for expelling waste and redundant substances from the body. However, when the human body ingests too much water-retaining agent, the kidneys need to work harder to excrete the excess substances. Excessive use of water-retaining agent for a long time will lead to kidney damage, kidney calculi and other problems.