As the old saying goes: “Food is the God of the people”. Chinese people have always been more concerned about food, so almost every tumor patient will ask the same question, during the period of illness, what things can be eaten, what things can not be eaten? In fact, in simple terms, we emphasize on four points: good digestion, nutrition, no picky eating, no taboos. Nasopharyngeal cancer and other head and neck tumor patients, according to the different stages of differences, the following respectively from the radiotherapy and chemotherapy after the introduction of how to eat in the end. How to eat during radiotherapy 1. Adequate intake and balanced nutrition Chemotherapy will cause nausea and vomiting, loss of appetite, mucositis of oral pharynx and abnormal sense of taste caused by radiotherapy, which will affect patients’ eating, so most of the patients have the problem of insufficient intake or partiality of food. On the one hand, energy to maintain the body’s basic metabolism; on the other hand, comprehensive nutrition is conducive to maintaining normal immune function, which is conducive to the repair of oropharyngeal mucosa. And during radiotherapy, too much weight loss, due to too much change in body size, resulting in poor fixation of radiotherapy, the repeatability and accuracy of radiotherapy greatly reduced. Therefore, during radiotherapy, you should eat more proteins with high nutritional value, containing complete essential amino acids and good proportion, such as eggs, dairy, fish and lean meat of animals, and eat more fresh vegetables, fruits, soybeans and their products. 2, prohibit spicy stimulating food In fact, this is mainly for the radiotherapy period, the patient radiotherapy will inevitably appear varying degrees of mucositis, swallowing pain difficulties, spicy too hot and other irritating food, will aggravate the loss of mucosa. 3.Eat less high uric acid food After tumor cells are killed by radiotherapy, a large amount of uric acid will be produced, which needs to be excreted through the kidneys. Therefore, high uric acid food will increase the burden of kidney. High uric acid foods mainly include shrimp and crab, seafood, animal offal and so on. Second, how to eat after radiotherapy 1, do not overemphasize the taboo, not picky eaters After radiotherapy, patients tend to lose too much weight, poor nutritional status, poor appetite. Many patients and their families overemphasize the avoidance of food, especially food, as well as pepper, MSG, onion, ginger, garlic and other condiments. So the meals made are bland and tasteless, which seriously affects the nutritional intake of patients. In fact, there is no evidence that hairy food, as the common people often say, can lead to tumor recurrence and metastasis. Therefore, the premise of abstaining from food is to ensure enough nutrition in order to make the body recover as soon as possible. 2, do not eat cancer-causing food A lot of cooking methods, will make the food produce carcinogens, such as smoking, barbecue, frying, waxy, pickled, moldy, etc., this kind of food as little as possible. In conclusion, adequate nutrition is very important, not only to ensure that radiotherapy is carried out smoothly, but also to promote the body to recover as soon as possible after radiotherapy. One more reminder is that cigarettes are absolutely forbidden.