The harm caused by eating too much salt to the body mainly includes causing abnormal blood pressure, triggering osteoporosis, damaging the kidneys, damaging the stomach and so on. 1. lead to abnormal blood pressure: long-term intake of excessive salt will lead to serious sodium retention in the body, resulting in an abnormal increase in blood pressure. 2. Trigger osteoporosis: the more salt you eat, the more calcium will be excreted by the body, resulting in increased calcium loss in the bones, thus contributing to the formation of osteoporosis and the onset of osteoporosis. 3. Damage to the kidneys: the kidneys are a very important excretory organ for the body, and excessive intake of salt will lead to increased burden on the kidneys, which in the long run will lead to damage to kidney health. 4. Damage to the stomach: the high osmotic pressure environment caused by excessive salt intake will lead to the gastric mucosa to be directly adversely affected and damaged. The Dietary Guidelines for Chinese Residents suggests that the daily diet should follow the dietary principle of less oil and less salt, and the daily salt intake of an adult should not exceed 5g.