Leeks, hollow vegetables, cucumbers and oleaginous vegetables all have laxative and laxative effects. Leeks contain a large amount of dietary fiber, which is also rich in sulfide content. Properly eat leeks can not only promote intestinal peristalsis, improve constipation, while sulfide also has an antibacterial and anti-inflammatory effect, can inhibit the growth of Escherichia coli, improve intestinal function. Empty cabbage is not only high in dietary fiber, but also rich in vitamins and pectin. These substances can promote intestinal peristalsis, while allowing toxins in the intestine to be expelled from the body, and therefore have a laxative effect. Cucumber is rich in vitamin C and has the effect of purging heat and detoxifying, water and diuretic. The fiber in cucumber is short fiber, which not only does not cause irritation to the intestines, but also promotes colon peristalsis and helps relieve constipation. Oleander has the effect of clearing heat and removing fire, in addition to the rich dietary fiber also contains mannitol, so it can promote intestinal peristalsis, while regulating intestinal blood circulation, to lower blood pressure and blood fat effect.