✅ Banana Bananas contain a lot of water-soluble plant fiber, which can cause hypertonic gastrointestinal secretion, make the excrement soft and easy to discharge, and prevent constipation. ✅ Apple Apple is rich in water-soluble dietary fiber-pectin, which protects the intestinal wall, activates useful bacteria in the intestine, and adjusts gastrointestinal function, so it can effectively clean the intestines and prevent constipation. ✅ Potatoes The dietary fiber in potatoes cannot be digested and absorbed by the human body, but it can absorb and retain water in the intestine and make the excrement soft. Therefore, eating potatoes can prevent constipation. ✅ Corn Corn contains a lot of fiber, which can increase the frequency of bowel movements and prevent constipation.