Talking about the influence of salt on human health

There are about 50 kinds of minerals in human body, among which sodium, chlorine, potassium and magnesium are a large number of common mineral macro elements. The salt we can't live without in our daily diet is mainly sodium chloride, which contains a small amount of elements such as potassium and magnesium, and sea salt also contains more iodine. Sodium and potassium play an important role in maintaining normal water distribution inside and outside cells and promoting material exchange inside and outside cells. Too much or too little sodium will directly affect the normal physiological function of cells. Therefore, salt intake is very important for human health. China people always attach importance to salt. Li Shizhen said in Compendium of Materia Medica: "Of the five flavors, this is essential". Why is salt so important? This is because people will get sick if they don't eat enough salt. Without it, the heart will affect the normal beating; Chlorine is the main raw material of gastric acid. If the body lacks chlorine, it will lead to gastric acid deficiency, indigestion and loss of appetite. If you don't eat salt for a long time, you will be weak, dizzy and convulsed all over. It is called "salt loss" in medicine. Salt plays an important role in maintaining osmotic pressure of body fluids and acid-base balance, maintaining stress of nerves and muscles, and regulating physiological functions. In addition, salt has antibacterial, bactericidal and antiseptic effects. Since the role of salt is so important, some people think that if you want to be strong, you must eat more salt. This view is also one-sided and wrong. Normal people will excrete a certain amount of salt because they sweat and urinate every day, so they must supplement salt every day. Ordinary people can meet the normal demand with 3-5g of salt every day. However, due to different living habits and tastes, the actual salt intake varies from person to person and from place to place. In China, the salt intake is very large, and ordinary people eat about 10- 15g of salt every day. It must be known here that the amount of salt should not be increased except for sweating or excessive urination due to high temperature, hard work, chronic diarrhea or taking diuretics. Excessive salt will increase the burden of heart and kidney function and become a health hazard. It is scientifically confirmed that excessive salt is also closely related to hypertension. In addition, eating too much salt is not good for patients with respiratory diseases, which aggravates asthma and chronic bronchitis and increases the amount of sputum. Restricting the amount of salt is also an extremely important treatment for ulcers, acute rheumatism, obesity, coronary heart disease and ascites due to liver cirrhosis. So how much salt should normal people eat every day? The safe intake of sodium for human body is1000-2500mg, and the sodium content in salt is 40%, that is, only 2.5-6g of salt can be ingested every day. Therefore, the World Health Organization recommends that the salt intake should be below 6 grams per person per day. Except that salt can provide sodium, the salt content of soy sauce is 18%, and pickled foods such as pickles, sauce products and salted eggs are all high in salt content. In fact, it is not difficult to calculate how much salt we eat at home. If you buy 500 grams of salt, write down the date of purchase. When 500 grams of salt is finished, write down the date again. Divide the number of days you eat salt by the amount of salt you eat, and then divide it by the number of people who eat at home, and you will get an approximate per capita salt intake. Soy sauce is another main source of salt in your diet, so you should add the amount of soy sauce when calculating the salt intake. The method is the same as before. After calculating the amount of soy sauce, multiply it by 18% to get the salt intake through soy sauce. For the health of you and your family, please incorporate the salt intake control plan into your nutrition balance plan as soon as possible!