Blueberries have a light defecating effect, which means that eating blueberries will help with bowel movements and mild diarrhea. In addition, blueberries are cold in nature and are not suitable for people with a weak gastrointestinal tract. Blueberries contain acid and a lot of dietary fiber, after eating can promote gastrointestinal motility. As seen from the above three points, patients with diarrhea should not eat blueberries as much as possible, which will only aggravate the condition and lead to heavier diarrhea symptoms. During diarrhea, it is recommended to eat some light and easily digestible food, such as millet porridge, steamed buns, rolls, whole wheat bread, etc.; vegetables such as potatoes, broccoli, etc.; for fruits, it is recommended to eat some mild fruits, such as peaches, apples, etc. Drink more water, preferably light salt water, to avoid dehydration and electrolyte disorders.