There are many types of gastric diseases, and different types of gastric diseases have different pathogenesis and clinical manifestations. There are corresponding treatment plans for different diseases. There are also corresponding dietary aids to reduce stomach irritation and speed up the healing of gastric diseases. Eat less bananas for indigestion and drink more rice porridge for frequent acidity. As the saying goes, “people can not eat a day”, gastrointestinal disease patients do not pay attention to diet, gastrointestinal disease symptoms will continue to worsen. Different gastrointestinal diseases diet should also be different. So, what foods are suitable for different types of gastrointestinal disease patients to eat and what foods are not suitable for them to eat. Stomach ulcer patients drink less coffee. Stomach or duodenal ulcer, epigastric pain is the main symptom of peptic ulcer, the pain is dull, burning or hunger, occasionally severe pain. Its attack triggers include cold, mental stimulation, exertion, improper diet and infection. Patients with this stomach disease should not eat rough, too cold and too hot food, and avoid foods that stimulate gastric acid secretion, including wine, coffee, strong tea, spicy condiments and foods that are too sweet, too acidic and high in fat. To reduce the stimulation of stomach acid on the gastrointestinal mucosa, you can eat some easily digestible, nutrient-rich foods to neutralize stomach acid. Grains and cereals, soy milk, tofu, eggs, fish, tender lean meat, animal liver, etc. are very suitable. Eat less burgers for indigestion. The symptoms of non-ulcer dyspepsia are mainly upper abdominal and sternal distention, pain, bloating and bowel sounds. Eating can often make the distention or pain worse. In addition, there are symptoms such as anorexia, nausea, poor bowel movements, and anxiety or depression. There are many triggers for the onset of functional dyspepsia, among which mental factors are often triggers for the onset. In a state of mental stress or depression, gastric motility and secretion are reduced or may even stop. Foods that should not be consumed include greasy foods (fried items, burgers, French fries), foods that produce gas easily, such as beans, sweet potatoes, taro, and foods that alter intestinal motility, such as chocolate, desserts (cakes, cookies), vegetables with a lot of coarse fiber (bamboo shoots, celery), and fruits with a lot of skin, seeds, and fiber (bananas, longans, lemons, pineapples) should be minimized. The usual food should be light. You can choose to drink fresh juice, cereal and millet porridge to help digestion, and have small and frequent meals. You should eat less chocolate if you have excessive stomach acid. In patients with gastroesophageal reflux disease, food or gastric juices in the stomach can reflux (reverse flow) into the esophagus and cause discomfort. Most of the symptoms are acidity, heartburn, difficulty in swallowing, and bitterness in the mouth when bending over or lying down after eating or drinking. The main cause of gastroesophageal reflux disease is the inability of the lower esophagus to function properly and the reflux of gastric juices into the esophagus. Foods not recommended: chocolate, coffee, spices, mint, citrus, tomatoes, whole milk and onions. Foods to be consumed: high protein (poultry and eggs), fiber-containing foods (vegetables, cereals), easily digestible rice porridge, etc. The patient with gastritis should eat less sucrose. Acute and chronic gastritis refers to acute or chronic inflammatory changes in the gastric mucosa due to various causes. When suffering from acute gastritis the gastric mucosa becomes congested, edematous, and even erosion and bleeding. Therefore, the diet of patients with acute gastritis should be based on liquid food, with few and many meals. If it is accompanied by enteritis or diarrhea, the diet should use less or no sucrose to avoid producing or aggravating intestinal flatulence, and should also prohibit the consumption of some raw vegetables, fruits and foods with high crude fiber content. Patients with chronic gastritis often have a poor appetite, feeling full in the upper abdomen after meals and other indigestion. If the patient has anemia, loss of appetite and other phenomena should eat more blood food, such as animal offal, colored fresh vegetables, etc.