Under normal circumstances, eating onions will not cause diarrhea, but to be divided into physical, each person’s physique is not the same as the absorption of food, digestion is not the same. If the gastrointestinal function is not very good, such as enteritis, gastritis, gastric ulcer or erosion and other gastrointestinal digestion is not good, at this time if you eat onions, may produce diarrhea symptoms, because gastrointestinal diseases are afraid of spicy stimulation, onions also belong to the spicy food, so eating onions in this case also depends on whether there is usually a gastrointestinal function is not good. If the stomach and intestines do not have any problems, you can eat, will not cause diarrhea. But if you have gastroenteritis or gastrointestinal function digestion is not good, try not to eat onions. If the stomach is not good, in the diet must pay attention to, all spicy food can not eat.