In the human demand for food seasoning, salt can be said to be the first of all flavors. But most modern people know that the health advice from the World Health Organization is that the daily salt intake of each person should not exceed 5 grams. The recommendation of China Nutrition Society is that the daily salt intake of healthy people should not exceed10g.

According to the survey of the World Health Organization, by the end of 20 18, the global13 population's salt intake exceeded the standard. The survey in China shows that the salt intake of people in the northern region is less from 15 to 16 g/day per capita, and even more than 20 g/day in many places; People in the south have a slight taste, but the per capita salt intake also reaches12g/day, which obviously exceeds the recommended amount of the World Health Organization.

Extended data:

Life activities based on salt are embodied in many aspects.

1, through the sodium ion in the salt to maintain the osmotic pressure of extracellular fluid, thus regulating the human body's demand for water.

If there is too much salt in the extracellular fluid, the osmotic pressure of the extracellular fluid will increase, suck out the water in the cell, and then stimulate the nerves, making people feel thirsty and drink water to replenish water; On the contrary, it is necessary to discharge excess water through sweating and urination to maintain the osmotic pressure balance of extracellular fluid.

2. As a neurotransmitter and other neurotransmitters, sodium ions in salt can maintain and promote the excitement of nerves and muscles, which is embodied in what the folks say: "No salt, no strength".

The conduction process of nervous system is a process of biochemical reaction and bioelectric current. Simply put, sodium ions and potassium ions can improve the excitability of nerves and muscles, while calcium ions and magnesium ions can reduce the excitability of nerves and muscles.

People's Health Network-How much salt intake is appropriate is controversial.