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, the ancient and modern literature, “contraindication” is not arbitrary, but follow certain principles, one is “evidence-based contraindication”, the second is to follow the five elements of the law of birth and death 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, spicy dry, deficiency 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”. The five tastes of “pungent, sweet, sour, bitter and salty”, and according to the taste and function of food, the food to be avoided is divided into six categories. Spicy: including chili, pepper, ginger, garlic, leek, pepper, green onion, mustard, alcohol, etc. Cold: including watermelon, pear, persimmon, pineapple, banana and other cold fruits; radish, cabbage, bitter melon, bamboo shoots, fava beans and other cold vegetables; popsicles, ice cream, frozen drinks or fruit and other frozen foods. Hairy food: including goose meat, beef, pork, rooster meat, dog meat, shrimp, crab, bamboo shoots, mustard, cassava, pumpkin, leek, etc. Fishy seafood: including shrimp, crab, snail, shellfish, scallop, sea eel, squid, squid and other aquatic products. Greasy category: including lard, pork, beef, mutton, animal offal and fried and barbecued food. Other categories: salty products, such as salt, soy sauce, soybean paste, pickled vegetables, pickled salted radish, pickled salted duck eggs, etc.; desserts, such as white sugar, brown sugar, all kinds of candy, cakes, sweets, and fruits containing more sugar, such as lychee, longan, sugar cane. 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 stressed 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., recurrence of disease after heat illness can be caused by improper diet. At the same time, “The Essentials of the Golden Horoscope” has set up two chapters, “contraindications and taboos of animals, fish and insects” and “contraindications and taboos of fruits, vegetables and grains”, clearly pointing out that “the taste of food, there are appropriate with the disease, there are harmful to the body, if appropriate, it will benefit the body, and harmful, it will become a disease. 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. For those who have a solid constitution, a comprehensive and reasonable diet is sufficient, but for those who have phlegm, dampness and stagnation, excessive nutrition is not recommended, especially to reduce the intake of fat, to eat more foods rich in dietary fiber, and to pay attention to vitamins and trace elements, and to strengthen exercise to avoid the development of metabolic diseases. The development of metabolic diseases. From a physical point of view, it is generally advisable for people with deficiency to take supplements, but the nature of the supplements should be decided according to the physical condition. 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, and avoid eating warm and dry foods that hurt Yin, such as onion, ginger, garlic, chili and other spicy and stimulating foods. However, people with deficiency 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. Children and the elderly From the point of view of age characteristics, children are often “spleen deficient”, the food eaten should be adapted to their digestive function, pay attention to the intake of high-quality protein and vitamins and minerals. The elderly should eat warm, cooked and soft foods, moderate fat and sugar, eat more fiber, light vegetarian and dairy foods, and avoid sticky, hard and cold foods. Women 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 breastfeeding, 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. Spring: Spring is wet, the body’s yang is in the rise, the liver and gall bladder 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. Summer: summer heat and dampness make the spleen and stomach trapped and the digestive function decreases, so the diet should be sweet and cold, light and avoid greasy, especially do not crave for cold fruits and vegetables. Autumn: As dryness is in season, it is easy to injure the lungs, so coughs are easy to develop. 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 less spicy food. Winter: everything is sealed and hidden, the cold evil is in full swing, 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. East, west, north and south: regional factors also have an important impact on the human body. Huangdi Neijing Suwen? For example, people in the East, who “eat fish and are salty”, tend to develop carbuncles and ulcers; people in the West, where the soil and water are strong, tend to develop internal wind. 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.