There is no best food for acute gastroenteritis, it is recommended to focus on light, easy-to-digest food, and can fast for a period of time in severe cases. To eat more light, easy to digest food, such as rotten noodles, millet porridge, egg custard, noodle soup, etc., can reduce the burden on the stomach and intestines, diarrhea stops and gradually return to ordinary diet. Drink plenty of water to ensure adequate water intake. If the symptoms are serious, you can fast for a period of time under the guidance of the doctor, and wait for the recovery of gastrointestinal function after the liquid diet. To do quit smoking and drinking, avoid eating spicy, greasy, cold and other stimulating food. Pay attention to dietary hygiene, avoid eating corrupt and spoiled food, develop good eating habits, eat small meals, chew and swallow slowly, avoid overeating. Acute gastroenteritis should be standardized under the guidance of a doctor.