How to eat after lung cancer surgery 1. The diet of patients after lung cancer surgery should pay attention to many things. For example, cellulose food should be added more after surgery, because cellulose in food, when passing through the digestive tract, expands due to water absorption. On the other hand, it can wrap up undigested food residues, some secretions of digestive tract, intestinal bacteria and toxic and harmful metabolites to form feces and excrete them. 2. To give patients the vitamin supplement they need after lung cancer surgery, dark vegetables such as spinach, carrot and rape are rich in carotene. After being absorbed, carotene can be transformed into vitamin A. Many studies have proved that vitamin A and carotene have preventive effects on the occurrence of lung cancer; lung cancer patients should often eat foods rich in vitamin A and carotene. It should be noted that after surgery, many patients will overly abstain from eating some things for better recovery, which is actually not conducive to the recovery of patients’ body due to their poor nutritional status and low immune function, therefore, lung cancer patients should not overly emphasize on abstaining from eating. Experts point out that after surgery, the specific diet arrangement should be based on the size of the surgery, the anesthesia method and the patient’s reaction to anesthesia to determine the time to start eating after surgery. If the surgery is small, patients who generally do not cause or rarely cause systemic reactions can eat after surgery. Patients who are under general anesthesia for larger operations or surgery should be given intravenous nutrition to supplement temporary nutritional deficiencies during the postoperative period.