A balanced diet refers to a diet with a proper equivalent of cereals, beans, meat, eggs, milk, vegetables, fruits and oils in a day's diet, and several kinds of foods are properly matched. To sum up, the following 10 matching should be achieved. 1. Matching coarse and fine grains: Adding coarse grains to the daily diet will help prevent diabetes, senile plaque, constipation, etc., and also help 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. Dry and thin matching: the ideal food for winter tonic: angelica and ginger mutton soup; Good for diuresis and dampness: stewed carp soup with red beans; A good product for lactation: Zizania latifolia bean curd soup; Good educational products: black sesame paste and six kinds of porridge recorded in A Dream of Red Mansions (red rice porridge, green stem porridge, jujube porridge, duck meat porridge, Laba porridge and bird's nest porridge), as well as "fairy porridge" found in Dunhuang art treasure house (composed of Gordon Euryale, yam and rice) are typical representatives of dry and thin matching. 4. Color matching: Food is generally divided into five colors: white, red, green, black and yellow. One-day diet should take into account the above five colors of food. 5. Nutrient matching: fat, carbohydrate and sodium are easy to be excessive; Protein, vitamins, some inorganic salts, water and dietary fibres are easy to be deficient; 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 fibres include vegetables, fruits and coarse grains. Water is an important nutrient, and you should drink more than 4 cups of water every day. 6. acid-base matching: food is divided into acidic and alkaline foods. Mainly according to the food is ingested by the human body, which ultimately makes the human blood 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. Matching heat and raw food: It has become a fashion to eat raw food. Eating raw vegetables, fruits, fresh shrimps and whitebait can get more nutrients. Pay attention to food hygiene when eating raw food. 8. Matching skin and meat: It is becoming fashionable to eat with belt meat. For example, quail eggs, tangerines, jujubes, peanuts, etc. have higher nutritional value when eaten together with skin. 9. Sex and taste match: 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 foods with different tastes. The general principle is that "those who are hot are cold, those who are cold are hot, and those who are deficient are tonic, but in fact they are diarrhea." According to the principle of "adapting to the time", we should choose different foods in different seasons, such as warm foods: mutton, venison, bullwhip, ginger, etc. in winter, and try to eat less cold and cool foods. The five flavors should also be matched, and we can't just eat sweet without suffering. 10. Matching of cooking methods: Common cooking methods include steaming, stewing, braising, frying, slipping, frying, rinsing, etc. Single cooking methods, such as burning, frying and frying, are easy to cause obesity. Cooking methods such as boiling, steaming and rinsing should be used more. Quality Matching of Common Diets From the point of view of modern nutrition science, if two or more kinds of foods are properly matched, they will not only "resist each other", but also "interact with each other" and play a complementary and complementary role in nutrition. 1. Sesame with kelp: co-cooking can play a role in beauty and anti-aging. 2. Pig liver with spinach: Both pig liver and spinach have the function of enriching blood, and one meat and one vegetable complement each other, which has a miraculous effect on treating anemia. 3. Brown rice with coffee: steam brown rice and grind it into powder, and add milk and sugar to drink. Brown rice is rich in nutrition and has a good effect on treating hemorrhoids, constipation and hypertension. Coffee can refresh, mixed with brown rice, and has more flavor. 4. Beef with potatoes: Beef has high nutritional value and has the function of strengthening the spleen and stomach. Cooking potatoes with them not only tastes good, but also contains rich vitamins, which can protect gastric mucosa. 5. Lily with eggs: it has the effect of nourishing yin and moistening dryness, clearing heart and calming nerves. Traditional Chinese medicine believes that lily can clear phlegm and replenish deficiency, while egg yolk can remove heat and replenish yin and blood, and the effect is better if they are conditioned with sugar. 6. Mutton with ginger: Mutton tonifies the yang and warms the body, and ginger keeps warm and cold, and they are matched with each other, warming up and warming up, and at the same time, it can also drive away external evils and cure cold and abdominal pain. 7. Soft-shelled turtle with honey: It is rich in protein, fat, multivitamins, and contains octanoic acid, polyacid, silicic acid, etc. It is a rare body-building agent, which has curative effects on heart disease, gastrointestinal diseases and anemia, and can also promote growth and prevent aging. 8. Duck meat with yam: Old duck can not only replenish human body water, but also replenish yin, and can clear away heat and relieve cough; Yam is more effective in nourishing yin. When eaten with duck meat, it can eliminate greasy and has better lung nourishing effect. 9. Carp with rice vinegar: Carp itself has the function of washing water, and human edema is mostly wet except nephritis; Rice vinegar is beneficial to dampness. If it is eaten with carp, the function of dampness is doubled. 10. Meat with garlic: According to research, vitamin B stays in the human body for a short time. Eating some allicin when eating meat can prolong the stay time of vitamin B in the human body, which is of great nutritional significance for promoting blood circulation, eliminating physical fatigue as soon as possible and increasing physical fitness. Therefore, don't forget to eat a few cloves of garlic when eating meat.