Gastroenteritis patients' diet: rich in calories, balanced in nutrition and reasonable in collocation, with carbohydrates and protein foods as the main foods, such as rice porridge, rice paste, noodle soup and lean porridge. Eat less greasy food, raw cold and hard food, spicy and pungent food and coarse food, and eat more stewed food, which is not only beneficial to digestion, but also can fully absorb nutrients.