Everyone says that people with hypertension should “eat lightly”, and the first thing on the list is less salt. The Chinese Nutrition Society recommends that the daily sodium intake should not exceed 6 grams for healthy adults and not more than 5 grams for people with hypertension. Limiting sodium intake is the least costly and effective measure to prevent and control hypertension. In fact, salt and MSG are both so-called “salt” and should be eaten sparingly! 1.What is salt? What is MSG? Generally, the salt in our public mouth refers to table salt, the main component is sodium chloride (chemical formula for NaCl). The chemical composition of MSG is sodium glutamate (chemical formula C5H8O4NNa-H2O), a fresh flavoring, easily soluble in water, and its aqueous solution has a strong fresh taste. With salt in the same, its taste is more fresh. 2, for high blood pressure in the end salt and MSG which is more harmful? In fact, MSG (monosodium glutamate) is also one of the broad definition of salt. Salt restriction for hypertensive patients refers to salt containing sodium, which includes the table salt and MSG we use, both of which are harmful to hypertension when consumed in excess. In addition to the sodium contained in table salt, sodium is also present in varying amounts in almost all foods. And the foods with the highest sodium content include condiments such as MSG and soy sauce. 3.So why does blood pressure rise after salt load? 1, renal sodium excretion disorder: after salt load intracellular sodium content increases, water and sodium retention in the body, urinary sodium excretion reaction is delayed, sodium pump (Na+-K+-ATPase) activity decreases, cell membrane sodium-lithium reverse transcription rate increases, sodium-calcium exchange increases, urinary potassium and urinary calcium excretion increases. Conversely, maintaining cellular levels of potassium and calcium facilitates sodium excretion and prevents salt-mediated increases in blood pressure levels. This is why it is recommended to eat more fresh vegetables and fruits daily to supplement potassium salts in the prevention and treatment of hypertension. 2, high salt intake and sympathetic nervous system: high salt diet can trigger excitation of the renal sympathetic nervous system and lead to increased blood pressure, in animal experiments to remove the renal sympathetic nerve can prevent salt intake caused by increased blood pressure. 3. Insulin resistance: plasma insulin levels and peak blood glucose concentrations after sugar loading were significantly increased during the high salt loading period, and were accompanied by insulin resistance phenomenon. Regarding the relationship between insulin resistance and hypertension, it mainly causes sympathetic activation as well as long-term effects can lead to smooth muscle cell hyperplasia and thickening of arterial blood vessel walls. 4, impaired endothelial function: 24-hour urinary endothelin excretion is significantly lower in hypertensive patients than in salt-insensitive individuals; urinary endothelin excretion is negatively correlated with blood pressure, especially at night. 4.How to control the salt intake? 1.Use more sour sauces such as vinegar and lemon juice when cooking to replace part of the salt and soy sauce, which can also improve the taste of food and make it tasty. 2.Steam and cook more often, and use less frying. Enjoy the natural taste of food. 3, eat more flavorful dishes, such as pumpkin, tomatoes, peppers, etc., with the taste of the food itself to increase the taste. 4.When using soy sauce and other condiments, use dots and dips, rather than putting all the soy sauce into the dish at once. Finally, I tell you that sodium is one of the elements of life, can not do without, but must not eat more, whether it is salt or MSG can not be excessive, the daily sodium control is less than 7 grams, hypertension and other cardiovascular disease at-risk groups to control the best in 3-5 grams.