Yogurt can prevent baby diarrhea. Yogurt contains a lot of lactic acid bacteria, and its acidity is suitable. Drinking yogurt regularly can improve immunity. Therefore, it can prevent diarrhea or shorten the duration of chronic diarrhea and reduce the incidence of acute diarrhea. Yogurt can promote brain development. Yogurt contains galactose, which is a component of brain phospholipids in the brain and nervous system, and is closely related to the rapid growth of the brain after the baby is born.