According to modern balance, people should maintain a dynamic balance in clothing, food, housing, transportation, nutrient intake and calorie discharge, and too much or too little will harm their health. Overeating can damage the stomach, easily lead to indigestion and even bloating. Overeating and malnutrition can cause functional decline and physical decline; The imbalance of dietary preference and nutritional intake will cause some nutritional deficiency and obesity. Balanced health requires a balanced diet, that is, the diet should include all nutrients needed by the human body, and the quantity and collocation of various nutrients are appropriate, which is basically balanced with the needs of the body. In other words, first of all, food should be diversified, and there can be no balance without food; Secondly, it needs various nutrients, such as a single variety, which cannot be balanced; Finally, the proportion of nutrients should meet the needs of human tissues, and it will be unbalanced if it is not coordinated. Only by adhering to a balanced diet can we maintain human health and be a scientific diet. The balanced regimen requires people to maintain harmony with the natural environment. If the human body violates the laws of the four seasons in nature and loses these balances, the human body will get sick.