Acute gastroenteritis is not allowed to drink iced sugar water because acute gastroenteritis is an infectious disease caused by various etiologies and the growth and reproduction of bacteria in the gastrointestinal tract. Clinically, it mainly includes abdominal pain, diarrhea as watery stools, nausea, vomiting, which may be accompanied by fever and other symptoms. Acute gastroenteritis is an inflammation of the mucosa of the gastrointestinal tract. The increased permeability of the blood vessels in the mucosa of the gastrointestinal tract leads to the leakage of fluid from the blood vessels into the gastrointestinal tract, resulting in excess water in the gastrointestinal tract, causing an increase in the number of stools, which are thin stools, etc. Acute gastroenteritis diet should pay attention to a light and easily digestible diet, not to eat irritating food, such as spicy stimulating, indigestible food. Because iced sugar water is cold and contains more sugar, so try not to drink iced sugar water.