Patients with advanced lung cancer can eat duck, but in moderation. Duck meat is rich in protein, patients with advanced lung cancer can eat duck meat, but it is better to cook it and eat it in moderation, and not to eat more, as patients with advanced lung cancer have poor digestive function, and eating more will aggravate the burden of patients’ digestive function. Duck meat is also rich in fatty acids, including low-carbon unsaturated fatty acids and saturated fatty acids, and rich in B vitamins and vitamin E, which can supplement the nutrition of patients with advanced lung cancer and improve their resistance, which is beneficial to the body of lung cancer patients. Patients with advanced stage of lung cancer are generally weak, they need to eat more fresh vegetables and fruits to replenish all kinds of vitamins needed by the body, and they should eat more protein-rich food, such as duck, chicken, milk and other supplemental nutrients, and seek medical treatment timely for changes in their condition.