多渣食物指膳食纤维含量丰富的食物。膳食纤维是由许多葡萄糖分子组合而成的多糖,是植物细胞壁的主要成分。人类消化道没有水解这类多糖的酶,所以膳食纤维进入人体内不能被消化吸收、产生能量。膳食纤维进入肠道,遇水膨胀,形成网状结构,像海绵那样吸附肠道内过多的脂肪和糖,然后随大便排出体外;纤维素 More slag food refers to the dietary fiber content of food. Dietary fiber is a combination of many glucose molecules made of polysaccharides, plant cell wall is the main component. Human digestive enzymes do not hydrolyze these polysaccharides, so dietary fiber into the human body can not be digested and absorbed, resulting in energy. Dietary fiber into the intestine, water swelling, the formation of network structure, like the sponge adsorption of excessive intestinal fat and sugar, and then excreted with the stool; cellulose