The term “taboo”, also known as forbidden mouth, food taboo, food taboo, etc., refers to the clinical practice of Chinese medicine to pay attention to dietary taboos in order to avoid affecting the therapeutic effect. The term “taboo” was developed on the basis of “the same source of medicine and food”, and has a broad and narrow sense. The narrow sense of taboo refers to the patient’s illness in the diet taboo, also known as the disease taboo. The broad sense of taboos in addition to the disease taboo, but also includes the age, physical, regional and seasonal differences and avoid taking certain food or less, but also to avoid the recurrence of certain conditions and avoid taking certain “hair products” and so on. The general principles of contraindication: Looking at the ancient and modern literature, “contraindication” is not arbitrary, but follows certain principles, one is “evidence-based contraindication”, and the second is to follow the law of the five elements contraindication. Chinese medicine is based on the theory of “hot is cold, cold is hot”, “Yang disease is treated as yin, yin disease is treated as yang, and deficiency is tonic, and reality is diarrhea”, and the use of food is based on the properties of disease and the function of cold and heat. For example, cold disease avoid cold, hot disease avoid spicy, Yin disease avoid Yin soft nourishing, Yang disease avoid warm, hot, dry, deficient evidence avoid gramming attack, solid evidence avoid tonic solid astringent, etc.. According to the law of the five elements, avoidance: “Ling Shu? The Five Flavors: “Liver disease is forbidden to be pungent, heart disease is forbidden to be salty, spleen disease is forbidden to be sour, lung disease is forbidden to be bitter, kidney disease is forbidden to be sweet and bitter” principle, combined with the condition and the properties of food and avoid food. As shown in the table. “Chinese medicine traditionally believes that “medicine and food have the same origin”, pointing out that food, like herbs, has five properties: “cold, cool, warm, hot and flat”. “pungent, sweet, sour, bitter, salty” five flavors, and according to the taste and function of food, the food to be avoided into six categories. 1, spicy category: including chili, pepper, ginger, garlic, leek, pepper, green onion, mustard, alcohol, etc. 2, cold category: including watermelon, pears, persimmons, pineapples, bananas and other cold fruits; radish, cabbage, bitter melon, bamboo shoots, broad beans and other cold vegetables; popsicles, ice cream, frozen drinks or fruit and other frozen food. 3, hair category: including goose meat, beef, pork, rooster meat, dog meat, shrimp, crab, bamboo shoots, mustard, cassava, pumpkin, leeks, etc. 4, fishy seafood: including shrimp, crab, snail, shellfish, scallops, sea eel, squid, squid and other aquatic products. 5, greasy category: including lard, pork, beef, mutton, animal offal and fried, barbecued food. 6, other categories: salty products, such as salt, soy sauce, soybean paste, pickled pickles, pickled salted radish, pickled salted duck eggs, etc.; desserts, such as white sugar, brown sugar, a variety of candy, cakes, sweets, as well as sugar-rich lychee, longan, sugar cane and other fruits. The clinical patients in the treatment period, not only to take drugs, but also to promote the healing of the diet, so it is important to take a practical and reasonable identification of food, identification of evidence on taboos. He emphasized the importance of “forbidding cold, sticky, meat and noodles, five spices, wine and cheese, and foul smelling things” after taking Gui Zhi Tang for Sun Stroke. The concept of “food recurrence” was introduced, i.e., the recurrence of disease can be caused by improper diet after heat illness. At the same time, “The Essentials of the Golden Horoscope” set up two chapters, “contraindications and treatment of animals, fish and insects” and “contraindications and treatment of fruits, vegetables and grains”, clearly pointing out that “the taste of food, there are appropriate with the disease, and there are harmful to the body, if appropriate to benefit the body, and harmful to become a disease, so as to cause danger. If it is appropriate, it will benefit the body, but if it is harmful, it will become a disease, and this will lead to danger”, emphasizing the importance of “avoiding food” in the disease. The “taboo” is appropriate for each person 1, the body of the solid body of the healthy people, diet attention to the comprehensive and reasonable, but also with phlegm and damp stasis, should not be supplemented with excessive nutrition, especially to reduce the intake of fat, you can eat more food rich in dietary fiber, and pay attention to supplement vitamins and trace elements, while strengthening exercise, to avoid the development of metabolic diseases. Avoid the development of metabolic diseases. 2, the body is deficient from the physical, deficiency evidence of people in general, it is appropriate to supplement, but should be based on the physical nature of the decision to supplement. For example, for Yang deficiency, the main purpose is to nourish the temperature and Yang, dispel cold and strengthen the spleen, avoid taking cold and cold food, and do not declare over-eating cold fruits and vegetables; for Yin deficiency, it is advisable to nourish Yin, generate fluid and clear heat, avoid eating warm and dry foods that hurt Yin, such as onion, ginger, garlic, chili and other spicy stimulating foods. However, the deficient person should not over-supplement, especially not eat fatty, fried, dry and hard foods that are difficult to digest, but should be sparing in supplementation, light and rich in nutrition. 3, children and the elderly From the point of view of age characteristics, children, “the spleen is often insufficient”, the food eaten should adapt to its digestive function, pay attention to the intake of high-quality protein and vitamins, minerals. The elderly should eat warm, cooked and soft food, moderate fat and sugar, eat more fiber, light vegetarian and dairy food, and avoid sticky, hard and cold food. 4. During pregnancy, women should pay attention to balanced nutrition, diversify food varieties and eat more meals. Do not eat too salty or too sweet food, avoid tobacco, alcohol, spicy, greasy and stimulating food to reduce food stimulation to the gastrointestinal tract. During the breastfeeding period, in addition to replenishing qi and nourishing blood, you should also add more minerals and trace elements to ensure the nutrition in breast milk. Women during menstruation, if the body is usually healthy, as long as the diet is regular, but be careful to eat cold things to avoid excessive vasoconstriction caused by dysmenorrhea. The body is usually weak, should pay attention to take some warm food to nourish the blood, such as dates, brown sugar, eggs, longan, etc., for cold food and hot food should be avoided. The change of seasons will bring different degrees of influence to the human body. The theory of “Heavenly Harmony” in Chinese medicine suggests that we should adjust our diet according to the body’s response to the external climate. 1.Spring: Spring is humid, the body’s yang energy is in the rise, liver and gallbladder gas, the spleen and stomach digestive function is relatively weak, the diet should reduce acid and sweet, cultivate the spleen, suitable for eating more light vegetables and beans, should not be greasy and spicy, so as not to generate internal heat. 2.Summer: summer heat and dampness, so that the spleen and stomach are trapped, the digestive function is reduced, the diet should be sweet cold, light, avoid greasy, especially do not crave cold melons and fruits. 3. Autumn: dryness is the order of the day, and dryness can easily injure the lungs, so it is easy to develop a cough. You should nourish the Yin and moisten the lungs by eating more moist foods such as pears, sesame, honey, sugar cane and dairy products, and eat less spicy food. 4, winter: everything is closed, the cold is prevalent, you can eat more warm food such as mutton, do not eat cold food, winter is a good time for the weak, old people to tonic. 5, east and west, north and south: regional factors also have an important impact on the human body. The Yellow Emperor’s Classic of Internal Medicine Suwen? It is pointed out that people from different regions may suffer from diseases due to different environmental and dietary habits, for example, people in the East, “eat fish and salty”, more carbuncles and ulcers; in the West, the soil and water are strong, and its people “eat fat and fat”, easy to develop In the north, the sky was cold and icy, and the people ate a lot of milk, so they were prone to “dirty cold and full of disease”; in the south, the people were “acidophilic and rotten”, and the region was wet, so they were prone to contractures and paralysis. Although the situation at that time was different from now, it also suggests that we can supplement and adjust the diet accordingly to the lack of local substances and the prevalence of diseases, so as to reduce the factors of disease susceptibility.