Potato cannot cure lung cancer patients; potato belongs to herbal plants and does not have medicinal effect, so it cannot cure lung cancer patients. Potato, also known as yam, contains high content of starch, protein, vitamins and inorganic salts, which can satiate the stomach and provide various daily needed nutrients for the human body when consumed appropriately; as potato belongs to the type of food, it doesn’t have medicinal effect and can’t be used in treating lung cancer patients. After diagnosis, lung cancer patients need to be clear about their pathological types and clinical stages, and then follow the doctor’s instruction to take various treatment means, such as chemotherapy, radiotherapy, surgery, etc. to control the disease process. Food does not have the therapeutic effect of drugs and cannot be used to treat the disease; if there are uncomfortable symptoms, it is necessary to consult a doctor in time and follow the doctor’s instruction to promote the recovery of the disease through relevant treatments, and do not use drugs privately, so as to avoid delaying the condition.