Patients with acute gastroenteritis should drink less soy milk during the onset of the disease. Although soy milk is rich in protein, it is not easy to digest and can aggravate the symptoms of gastroenteritis. The patient's diet should consist of eating smaller meals more frequently, focusing on foods that are easy to digest and low in fat. They can appropriately consume rice soup, noodles, and porridge. It is especially important to pay attention to food hygiene, washing hands before meals and after using the bathroom, and thoroughly heating up overnight food before eating. Avoid consuming raw, cold, spicy, or stimulating foods. Regular physical exercise should be maintained, and appropriate changes in clothing should be made on time with the change of seasons.