1. Combination of coarse and fine grains: Adding coarse grains to the daily diet will help prevent diabetes, senile plaque and constipation. It also helps to lose weight. 2. Matching of staple food and non-staple food: staple food and non-staple food should be unified in daily diet. 3. Lean collocation: the ideal food for winter tonic: angelica and ginger mutton soup; Good for diuresis and dampness: red bean stewed carp soup; A good product for promoting lactation: boiled bean curd soup; Good educational products: Black sesame paste and six kinds of porridge (red rice porridge, green stalk porridge, jujube porridge, duck porridge, Laba porridge and bird's nest porridge) recorded in A Dream of Red Mansions, and "fairy porridge" (composed of Euryale ferox, yam and rice) found in Dunhuang art treasure house are typical representatives of dry and wet combination. 4. Color matching: Food is generally divided into five colors: white, red, green, black and yellow. A day's diet should take into account the above five colors. 5. Nutrition collocation: fat, carbohydrate and sodium are easy to be excessive; Protein, vitamins, some inorganic salts, water and dietary fiber are easy to lack; 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. 6. acid-base matching: food is divided into acidic food and alkaline food. Mainly based on the food being ingested by the human body, the blood of the human body is finally acidic or alkaline. In recent years, due to excessive intake of meat food, blood acidification and rich diseases have been caused, which should be paid attention to. 7. Match calories with raw food: Eating raw food has become a fashion. Eating raw vegetables, fruits, fresh shrimps and whitebait can get more nutrition. Pay attention to food hygiene when eating raw food. 8. With skin and meat: Eating with belt meat is becoming a fashion. For example, quail eggs, oranges, jujubes, peanuts and so on. Eating with skin has higher nutritional value. 9. Sex and taste collocation: food is divided into four natures and five flavors. Four natures refer to cold, hot, warm and cool; Five flavors refer to pungent, sweet, sour, bitter and salty. According to the principle of "dialectical diet", different diseases should choose different flavors of food. The general principle is that "heat is cold, cold is hot, deficiency is tonic, but actually diarrhea." According to the principle of "adapting to the time", choose different foods in different seasons, such as warm foods: mutton, venison, bullwhip, ginger and so on. In winter, try to eat less cold food. Five flavors should also be matched, not just sweet and not bitter. 10. Matching of cooking methods: Common cooking methods include steaming, stewing, stewing, frying, sliding, boiling, frying and rinsing. A single cooking method, such as burning, frying and frying, is easy to cause obesity. Cooking methods such as boiling, steaming and rinsing should be used more.