Clinically there is no such thing as what staple food is best for a bad stomach, usually you can eat noodles, rice porridge, steamed bread and other staples, and pay attention to a balanced diet. Long-term improper diet, medication, etc. can be caused by bad stomach, common diseases are gastritis, gastric ulcer, functional gastric disease, gastric ptosis, gastric polyps, gastric cancer. Patients with bad stomach need to pay attention to the rationality of diet, try to light, easy to digest and rich in nutritious food, can be intake of staple food such as noodles, rice porridge, steamed bread, etc., but also eat corn, black rice, red beans, etc. in moderation. To ensure a balanced intake of nutrients, patients with weak stomachs should also eat more fresh fruits and vegetables, such as kiwi, bananas, tomatoes, lettuce and so on. Patients should ensure the freshness of food, avoid eating raw meat or ingesting spoiled food, pickled products, etc. They should also pay attention to avoiding cold and spicy stimulating food such as ice cream and chili peppers, in order to minimize the impact on the stomach. It is recommended that people with stomach problems should pay attention to their diet, and those who are clearly suffering from stomach problems should also follow the doctor’s instructions for treatment and regular medical checkups.