You can resume your normal diet on the first day after lung cancer surgery. According to the size of each patient's operation and physical recovery after operation, they can drink water 8 hours after anesthesia and eat liquid food 12 hours after operation. You can start eating semi-liquid food for breakfast on the first day after operation. Of course, it is better to use light porridge or light vegetable porridge, such as noodle soup, light vegetable porridge or egg soup. Diet should be light during chemotherapy.