The main component of edible salt is sodium chloride, and its main function is sodium ion. Participate in regulating the balanced distribution of human water, enhance the excitability of neuromuscular, ensure the normal function of acid-base balance and blood pressure in the body, participate in the formation of gastric acid, promote the secretion of digestive juice and stimulate appetite. The human body cannot do without salt, and the average adult can maintain basic physiological needs by taking 3 grams of salt every day.
Second, excessive salt intake will affect human health.
Excessive salt intake will cause many health problems, such as hypertension, stomach cancer, osteoporosis and other diseases. Studies have confirmed that a high-salt diet can improve academic speeches. When the diet is too salty, a large number of sodium ions enter the blood circulation, and a large amount of water will remain in the blood vessels, which will increase the blood volume, increase the burden on the heart, and increase the pressure on the blood vessel wall, which will eventually lead to an increase in blood pressure.