People eat different foods every day in order to get balanced nutrition, so people advocate a balanced diet. A day's diet should include grain, beans, meat, eggs, milk, vegetables, fruits and oil, and several foods should be properly matched.

From the perspective of modern nutrition, if two or more kinds of foods are properly matched, they will not only "mix" with each other, but also "grow" with each other, and play a complementary and complementary role in nutrition. To sum up, it should be equipped with the following.

"There are not many miscellaneous things." It means that everyone should eat all kinds of food every day, and achieve the goal of comprehensive nutrition through food diversification. "Miscellaneous" mainly refers to many kinds of food, with large span and far attributes. The average person's diet should have more than 30 kinds of food every day.

Food collocation can supplement nutrition or make up for some defects or injuries.

Food collocation must avoid "inappropriateness" of safety and non-toxicity, and try to match foods with average performance to enhance nutrition and health care.

Combining modern nutrition theory with TCM health preservation theory can guide the rational collocation of food and complete collocation skills.

First, the combination of coarse and fine grain

Adding coarse grains to the daily diet is helpful to prevent diabetes, senile plaque and constipation. It also helps to lose weight.

Second, the main and non-staple food collocation

The staple food and non-staple food should be unified in daily diet.

Third, nutrition collocation.

Fat, carbohydrates and sodium are easy to be excessive; Protein, vitamins, some inorganic salts, water and dietary fiber are easy to be lacking; Foods with high protein and low fat include fish and shrimp, rabbit meat, silkworm chrysalis and lotus seeds. Foods rich in vitamins, inorganic salts and dietary fiber include vegetables, fruits and coarse grains; Water is an important nutrient. Drink more than 4 glasses of water every day.

Fourth, acid-base matching

Food is divided into acidic food and alkaline food. Mainly according to the different pH of blood after people eat food. In recent years, due to excessive intake of meat food, blood acidification and rich diseases have been caused, which should be paid attention to.