Diarrhea is clinically known as diarrhea, which is mostly caused by acute gastroenteritis, indigestion and other gastrointestinal diseases. Patients should pay attention to a light and easily digestible diet, avoiding stimulating and indigestible food. Patients with diarrhea usually have gastrointestinal dysfunction such as digestive and absorption disorders and abnormal peristalsis, and patients should pay extra attention to their diet to avoid irritation of the gastrointestinal tract. The patient should be light, easy to digest food, such as rotten noodles, millet porridge, egg custard, etc., but also can eat some fresh fruits and vegetables, to replenish the nutrients and energy lost in diarrhea. At the same time, pay attention to drink more water to avoid water electrolyte disorders. When eating, attention should be paid to dietary cleanliness, to avoid causing gastrointestinal infections, aggravating the symptoms. Diarrhea patients should also pay attention to avoid eating chili peppers, cold drinks, ginger and other cold and spicy food, should also eat less fried food, meat, desserts and other fat and cholesterol-rich food that is difficult to digest, reduce corn, sweet potatoes and other coarse grains eating, so as not to increase the burden on the stomach and intestines, aggravate the patient’s symptoms. In addition to paying attention to the diet of patients with diarrhea, it is recommended to seek timely medical attention to identify the cause of the disease, targeted treatment, so as not to delay the condition.