As the saying goes, “illness comes from the mouth”, many people suffer from illnesses because they do not control their mouths, especially patients with malignant tumors, diabetes and hypertension who need long-term treatment, and their health is closely related to their diet. So, what is the scientific way to eat for cancer patients? Avoidance of food should not be too strict “In the clinic, 60% to 70% of the cancer patients we met have little concept of diet. This group of people either don’t care about anything, and eat whatever they want to eat; or they dare not eat anything, and a few exaggerated patients only eat vegetables cooked in water in the end. This is wrong and can be counterproductive to the disease.” Dr. He Fule introduced. Chinese medicine advocates that malignant tumor avoidance should follow the following principles: 1. strategic importance, tactical defiance: proper attention to dietary contraindications is necessary, the diet should eat nutritious, easy to digest and absorb food, but the avoidance should not be too strict, the recipe should not be too narrow; 2. vegetarian dishes as the main, meat dishes as a supplement: vegetarian dishes should preferably account for about 70% of the total diet; 3. not fresh food avoidance, warm and hot food less: in general The fresh food is rich in nutrients and has less adverse effects on health. Many eating habits problems, such as pickled products (pickles, salted fish, bacon, sauerkraut are pickled products) as food, a small amount of healthy people can eat, but if long-term consumption, it is more harmful to the body. Because pickled products often contain a large number of nitrite, which is a carcinogenic factor, while the production method of pickled products due to restrictions, generally also contains excessive lead, arsenic, cadmium, mercury and other heavy metals, as well as peroxides, sulfides and other excessive. And pickled products do not contain vitamin C and other nutrients that the body needs. Dr. He Fule further explained that the “warmth” in the “warm food” refers to the cold and hot nature in Chinese medicine theory. Tumors are caused by deficiency of vital energy in human body, resulting in stagnation of Qi, blood stasis, phlegm coagulation and dampness, and the accumulation of toxicity over time, which is prone to anti-heat. There are many kinds of malignant tumors, is there also a clear distinction in diet? “In fact, we have previously emphasized that cancer patients do not have too many problems as long as they conform to the three major principles. It should be reminded that patients like lung cancer patients should never eat spicy and seafood, we found in our clinic that the deterioration and recurrence of many cases are closely related to these two diets; digestive system diseases like stomach cancer and intestinal cancer should not eat foods that are too cold, too sweet and too greasy, because the spleen and stomach are weak and extra attention should be paid. Like many patients who feel they are sick, obviously with thick and greasy tongue and uncomfortable abdominal distension, they always take snapper and eel as supplements, which is not scientific. Long-term indiscriminate supplementation instead of appetite to eat bad.” Dr. He Fule said, how to make up also need to talk about science. For example, you can eat some Dendrobium ferruginum if you are deficient in qi and yin; you can use some Ganoderma lucidum wall-breaking spore powder if you have poor sleep and poor resistance. But not all diets are suitable for all people, medicine and food, there are also instructions. Experts say that in daily life, yam and rice kernel can be eaten by everyone, but coarse grains cannot be eaten every day, everyone eats, meals, because too much coarse fiber will hurt the gastrointestinal tract, especially cancer patients with weak gastrointestinal function, and more is not advocated.