Patients with advanced lung cancer should also be given appropriate diet according to the treatment method they are receiving. For example, patients undergoing radiotherapy and chemotherapy often have abnormal taste and anorexia, and everything they eat becomes bitter or tastes wrong. The way to deal with: eat more high-protein, high-nutrition food and fresh fruits, vegetables, etc.; in the food appropriate to increase the seasoning; do some color, flavor and shape of the food to cause appetite. 1, the implementation of food therapy should be based on the specific circumstances of the patient. For example, if the patient’s tongue is greasy, yellow or white, he should eat foods that strengthen the spleen and resolve dampness, such as rice kernel, lentils, etc., while turtle is definitely not allowed to be eaten. For example, foods with the effect of nourishing Yin and moistening lung include almond, lily, water chestnut, etc., while lotus root, lotus seed, persimmon, duck pear, yam, lily and white fungus have the effect of stopping cough and astringent and stopping hemorrhage. 3.In addition to the above-mentioned tonic foods of traditional Chinese medicine, patients with advanced lung cancer should use milk, eggs, lean meat, soy products, fresh vegetables and fruits. The amount of food and the number of times the patient eats can be increased as much as possible. Patients with lung cancer should avoid fishy and greasy food, spicy, smoking, alcohol and other stimulating foods.