People with gastroenteritis should try to eat less bread, as bread is a type of fermented flour-based food that can cause increased gas production and acid reflux when consumed in excess. Due to some damage in the intestinal function of individuals with gastroenteritis and the disruption of gastrointestinal digestive functions, it is advisable to choose soft, easily digestible foods such as rice soup and vegetable soup, eat more vegetables, and drink plenty of fluids. If diarrhea occurs, it is important to actively use medications that stabilize the intestines and stop diarrhea. Severe diarrhea can lead to dehydration, which should be promptly treated with fluid replenishment.