Cooked apple puree can treat diarrhea, but the symptoms and nature of diarrhea should be distinguished. If the diarrhea is mild, such as viral diarrhea caused by eating unclean food, and the patient has mild diarrhea with watery or mushy stools, mild nausea and vomiting and mild fever and malaise, these uncomfortable symptoms can be taken with cooked apple puree to stop diarrhea. Because apples are rich in alkalinity and have a large amount of pectin, which can act as an adsorber and astringent, they can be used to treat diarrhea. Boiling apples into a paste, while adding some rice flour, etc., on the one hand facilitates digestion, and at the same time facilitates absorption and anti-diarrhea effects, replenishes water and electrolyte loss caused by mild diarrhea, and also facilitates the patient’s gastrointestinal tract to rest and facilitate food digestion and absorption. However, if the diarrhea is severe, even with obvious fever, nausea, vomiting is very heavy, accompanied by pus and blood mucus stool, consider bacterial diarrhea, simply eating cooked apple puree to stop diarrhea effect is poor, to go to the hospital for consultation, if necessary, may need to carry out infusion and antibiotic symptomatic treatment. Therefore, cooked apple puree has some therapeutic effect on diarrhea, especially for mild diarrhea.