The main component of salt is sodium chloride, a common seasoning in life, moderate consumption can increase the flavor of the meal, usually 6-8g of salt per day for adults to meet the body’s required sodium content. But in excess, it is easy to cause harm to the human body, may cause cardiovascular diseases, kidney diseases, tumor diseases and other problems. 1, cardiovascular diseases: excessive intake of salt, will lead to increased pressure in the vascular arteries, which can lead to hypertension. At the same time, as blood pressure rises, heart pressure increases, cholesterol and blood lipids rise, easily increasing the risk of heart disease, coronary heart disease, heart failure, stroke and other diseases; 2, kidney diseases: excess salt in the body, sodium content increases, the kidney drainage and excretion function decreases, urine protein increases, edema, and in serious cases can lead to kidney failure, kidney stones and other diseases; 3, tumor diseases: a large amount of salt will destroy the Stomach mucosa, so that the protective force of the stomach wall is reduced, stimulating the gastrointestinal tract, increasing the risk of gastric disease, gastric cancer; 4, other: excessive salt intake is prone to thirst, as well as calcium loss leading to osteoporosis and other symptoms. In summary, excessive salt intake is harmful to many, so daily life needs to pay attention to reduce salt intake, to ensure a low-salt diet, but also need to eat less pickled food, such as pickles, salted meat, etc.. Eat more vitamin-rich vegetables and fruits, such as cucumbers, oranges, etc., to promote health.