The taboos of diet were first introduced in the Yellow Emperor’s Classic of Internal Medicine, however, over-emphasis on taboos without any basis may cause malnutrition, so it is advocated that taboos should be determined according to the specific situation. Zhang Congzheng, a Jin Dynasty physician, wrote in his book “Confucianism” that a patient with prolonged diarrhea was cured by taking lamb liver. Ye Gui of the Qing dynasty also said, “Those who eat people who are comfortable, that is, the stomach likes to be tonic.” These are all examples of advocating flexible control of dietary contraindications. The concept of dietary contraindications includes both broad and narrow concepts. The broad concept of dietary contraindications involves food and constitution, region, season, age, condition, as well as diet preparation, usage and dosage. The narrow concept of dietary contraindications covers contraindications in terms of diet and medical conditions. In the daily application, the following aspects should be noted: the dietary contraindications of the disease are determined according to the cold and heat of the disease, combined with the five tastes and four gases of the food. According to the Chinese medical literature, the ancient physicians highly summarized the foods to be avoided during the illness into the following categories: raw and cold: cold drinks, cold food, a lot of raw vegetables and fruits, etc., are contraindicated for patients with cold diarrhea of the spleen and stomach. Sticky and slippery: rice and noodle foods made of glutinous rice, barley and various types of sticky rice are contraindicated for patients with spleen deficiency and dullness, or for patients with the first onset of external sensation. Greasy: meat, fatty meat, fried food, dairy products (milk crisp, cheese), etc., are contraindicated for patients with dampness and heat, phlegm and dampness. Fishy: shrimp, crab, seafood (mussels, mussels), mutton, dog meat, venison, rooster, etc. are contraindicated for patients with wind-heat, phlegm-heat, sores, spleen and stomach injury. Spicy: onion, ginger, garlic, chili, pepper, leek, wine, etc., are contraindicated for patients with internal heat. Fatty foods: foods that can cause the recurrence of old diseases and increase the weight of new diseases. In addition to the above fishy, stinky, spicy and other foods, there are still some special foods, such as buckwheat, bean sprouts, goose, chicken head, duck head, pig head, donkey head meat, etc., for asthma, wind evidence, skin disease patients are contraindicated. Where the gas is pungent and meat, it will help fire to disperse gas; taste heavy and sweet, it will help wet phlegm; body soft and slippery, it is through the intestines and diarrhea; hard and hard. The company’s main goal is to make it difficult to digest; cooked and cooked, it is serving the gas congestion. Such as beef, chicken is on the sweet warm, Yin deficiency fire body should not eat; water chestnuts, pears sweet cold cold, the spleen and stomach cold patients should be used with caution.