Lung cancer patients can eat beef, there is no special contraindication, but it is recommended to eat lighter and not to eat too spicy and stimulating. In addition, the decision should be made according to the patient’s own taste. Lung cancer is a malignant tumor of the respiratory system and does not involve the digestive tract, so there is no special dietary requirement. However, a high protein diet that is easy to digest is the main requirement. Because lung cancer is a consumptive disease and consumes more than normal, nutrition can help to keep up with anti-tumor treatment. Lung cancer treatment requires a comprehensive treatment plan based on radical surgery, including radiotherapy, chemotherapy and targeted drugs. For lung cancer, if the adenocarcinoma is genetically tested for mutations, targeted therapy may be more effective and have less side effects.