1.Some people think that the patient’s diet should be restricted, thinking that eating “hairy” and “fishy” food will make the tumor develop and deteriorate, such as shrimp, crab, fish without scales, dog meat, donkey meat, leek, etc.; some people think that cancer cells have a stronger ability to take in nutrients than normal cells. Some people think that cancer cells have stronger ability to take in nutrients than normal cells, and if they eat more high protein, it is beneficial to cancer cells. However, if the nutrition is insufficient, the immune function of human body is at a lower level and the ability to fight against cancer will be further weakened, but it is beneficial to the development of cancer cells and the quality of life is reduced. For example, without certain protein supply, it is difficult for chemotherapy patients to recover their white blood cells and hemoglobin. (1) Do not eat onion, green radish, radish seeds, etc. during taking ginseng and American ginseng, because the effect of ginseng is reduced due to the scurrying nature of onion and radish; (2) Some Chinese medicine manuals say avoid eating deep-sea fish, etc., because the use of herbs with the opposite effect of seaweed will produce certain toxic side effects after eating, so avoid eating them; (3) Avoid drinking tea, coffee, etc. (3) avoid drinking tea, coffee, etc., because the caffeine, theophylline, rubbing acid in tea will interact with some drugs, such as and tranquilize the class of sour date palm, cypress kernel, Yuan Zhi and blood and qi tonic yellow contempt, Shou Wu, Tu Fu Pao, chicken blood vine and other drugs can not be used together, will reduce the efficacy of the drug, that is, “tea solved the drug. Clinically, it is observed that most patients due to physical weakness, consumption, gastrointestinal digestive function is poor, the diet should choose nutritious, easy to digest and absorb food such as fresh meat, eggs, dairy products, soy products, fresh vegetables and fruits. Stimulating foods, tobacco and alcohol should be avoided as much as possible. In addition, adding Chinese herbs to the diet to make medicinal meals can often increase nutrition, improve the body’s ability to fight diseases and assist in fighting cancer.