Banana has the function of promoting intestinal peristalsis, softening stool and improving constipation. Banana is a tropical fruit, which not only contains a variety of minerals, but also rich in soluble dietary fiber. Soluble dietary fiber can promote the recovery of gastrointestinal function, promote the emptying of food in the stomach, and stimulate colon peristalsis, which has a regulatory effect on constipation. Soluble dietary fiber has the function of absorbing water, which makes the stool softer and easier to be excreted after absorbing water. The fructose content in bananas is also very high, which has the effect of protecting the gastric mucosa. Bananas themselves are an alkaline food, which can neutralize stomach acid and avoid damage to the gastric mucosa caused by stomach acid. Although bananas have a lot of benefits for the stomach and intestines, because bananas are cold foods, people with a weak spleen and stomach and loose stools should avoid excessive intake, otherwise it will lead to aggravation of the condition.