The body is a complex machine, and it must keep the balance between body fluids and electrolytes. If you eat too much sodium, the brain will trigger the release of a hormone, telling the body to keep as much water as possible to prevent physiological dysfunction.

Salt is not only an indispensable condiment in people's diet, but also an indispensable substance for human body. Its main component is sodium chloride, which is a neutral inorganic salt.

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From a physiological point of view, salt is of great significance for maintaining human health: salt can help people digest food. The salty taste of salt can stimulate people's taste and increase oral saliva secretion, thus increasing appetite and improving food digestibility. Salt can participate in body fluid metabolism. Salt is an important component of body fluids. People who work in high temperature sweat too much and need to supplement salty drinks. People with excessive vomiting and diarrhea should be given normal saline; People with excessive blood loss should also drink warm salt water urgently, because salt can maintain the osmotic pressure and acid-base balance of the human body.

However, excessive salt can cause many diseases. In China, people generally eat too much salt. According to the national nutrition survey, the salt consumption from south to north ranges from 12g to 15g, while the World Health Organization stipulates that it is 6g. Excessive salt intake has a direct impact on health, so we control the amount of salt and eat scientifically.

Baidu encyclopedia-salt