Early stage of lung cancer can eat more high protein and high vitamin foods. 1. High protein food: patients with early stage of lung cancer need to improve resistance and immunity during treatment, it is recommended to supplement high protein food, often consume: lean meat, eggs and milk. 2. High vitamin: high vitamin has the effect of protecting cardiovascular and antioxidant, etc. It is recommended to consume more fresh fruits and vegetables. It is recommended to consume more fresh fruits and vegetables, such as spinach, celery, cucumber, tomato, rape, dragon fruit, kiwi, apple, banana and so on. Patients with early stage of lung cancer should also pay attention to quit smoking and drinking, avoid spicy and stimulating food, avoid eating too greasy food, eat light diet and balanced nutrition. Patients with early stage of lung cancer are recommended to go to the hospital as early as possible for relevant examination and follow the doctor’s instruction for scientific and standardized treatment.