Lung cancer patients can eat durian, which is produced in the tropics and contains a variety of nutrients and is considered by locals to be the king of the tropics. However, traditional Chinese medicine believes that durian is effective in nourishing yin and strengthening yang, draining wind and clearing heat, tonifying bile and reducing yellow, killing worms and relieving itching, and can be eaten by cancer patients. Durian is rich in protein and lipids, which are good supplemental nutrients for the body, and is a good source of fruit-based nutrition that can quickly replenish the protein, lipids and other nutrients needed by lung cancer patients. In addition, the unique smell of durian can also appease the appetite and promote appetite, which is suitable for lung cancer patients with poor appetite and weak constitution. Durian is rich in dietary fiber, which can promote intestinal peristalsis and improve constipation, especially suitable for lung cancer patients with dry stools after chemotherapy. Patients should consume durian in moderation, preferably not more than 100g per day, because durian is high in sugar and too much of it may significantly increase blood sugar, and may also cause abdominal distension, fire and other uncomfortable symptoms due to excessive intake of dietary fiber.