Bananas, hawthorn, kiwi, dragon fruit, etc. have a laxative effect. Bananas are rich in dietary fiber, which can promote intestinal peristalsis after entering the digestive system, and also have a laxative effect, which has a good improvement effect on constipation. Eating bananas properly can also prevent high blood pressure and replenish the body’s potassium. Hawthorn is rich in pectin and dietary fiber, and also has the effect of eliminating stomach, spleen and blood stasis, so eating it properly can not only laxative, but also relieve the symptoms of constipation. Kiwifruit is rich in nutrients and dietary fiber, and its proper intake can promote gastrointestinal motility and aid digestion. It also removes harmful substances from the intestinal system and can help lower blood lipids and cholesterol while improving constipation. Dragon fruit is rich in dietary fiber, the seeds of dragon fruit is not absorbed by the body. After eating it can stimulate intestinal peristalsis, so that feces faster discharge, but also has a delay in human aging, the role of free radical removal.