Avoid eating fish, seafood, shrimp and crab during diarrhea as much as possible. In general, early stages of severe diarrhea are required to eat to give the intestines time to adjust properly. During the remission period, a semi-liquid diet with less grease, less residue, high protein, high calorie and high vitamin can be used, such as fine soft rice soup with less oil, thin porridge, noodles, as well as light tea and fruit juice. In the early stage, it is better to eat some light rice soup, and in the middle stage when it gets better, it is better to eat noodles and other liquid foods. These foods are easy to digest and absorb, and contain a lot of electrolytes needed by the body, and can be supplemented with calories and vitamins by eating less and more meals. Diarrhea patients can not eat food, such as sweets, vegetables, including some cabbage, leeks, spinach, cabbage, etc. contain a certain amount of nitrite or nitrate. Under normal circumstances, these vegetables have no adverse effects on the body, but when people are in diarrhea digestive dysfunction or low stomach acid, the nitrate-reducing bacteria in the intestine multiply, and the intake of the above-mentioned vegetables, even if they are very fresh, can lead to poisoning and cause intestinal cyanosis. Cold fruits, such as pears, pineapples, peaches, persimmons and other cold fruits, fried and deep-fried foods, meat, eggs, ham and sausages, etc. The overall diet for patients with diarrhea is fluid, with more warm foods and alkaline foods.