多吃香蕉真正能缓解便秘的是熟透的香蕉,其富含膳食纤维,可起到润肠通便的效果。而生香蕉中含有大量的鞣酸,具有收敛作用,吃了反而会加重便秘,因此治疗便秘时应选择那些熟透的,外皮上已有黑斑但内里果肉并未变质的香蕉。大量喝茶茶叶中儿茶素有一定的收敛作用,另外茶中鞣酸与蛋白质结合,会影响营养物质的吸收, Eat bananas can really alleviate constipation is ripe banana, which is rich in dietary fiber, can play the effect of laxative. The raw banana contains a lot of tannic acid, with a convergence effect, eating but will aggravate constipation, so the treatment of constipation should be selected those ripe, there are dark spots on the skin but the inner pulp has not deteriorated bananas. A large number of tea catechins in tea have a certain role in convergence, while the tannic acid in tea and protein combination, will affect the absorption of nutrients,