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美《医学新闻周刊》第12卷第15期(1980年)报道:有人认为,饮食纤维有两种类型,这两种类型对于结肠功能和结肠疾病是以不同的方式起着作用。一般认为,饮食纤维包括在植物细胞壁中的多糖和木质素,由于其纤维不经消化且含有水分,故使粪便排泄量增加,从而促进了结肠功能,减少了运行时间。排泄较多的粪便可使结肠免受疾病的侵袭。阿顿布鲁克(Addenbrooke)医院的邓恩营养研究中心的斯蒂芬(Alison Stephen)和卡明斯(John Cummings)以不同的饮食作试验,发现志愿受试者饮食中如附加18克小麦纤维,比对照饮食组受试者的粪便量约多一倍,通过肠道时间减少一半。增多的粪便中48％
The United States, “Medical News Weekly,” Volume 12 No. 15 (1980) reported: Some people think that there are two types of dietary fiber, these two types of colon function and colon disease is to play a role in different ways. It is generally believed that dietary fiber, including polysaccharides and lignin in plant cell walls, increases excretion of faeces due to its undigested and moisture-containing fibers, which promotes colonic function and reduces run-time. Excretion of more manure can make the colon from the invasion of the disease. Alison Stephen and Cummings at the Dunn Nutrition Research Center at Addenbrooke Hospital tested on different diets and found that 18 grams of wheat fiber were added to the volunteer diet as compared to controls Subjects in the diet group doubly doubly dosed half of their intestine time. Increased manure in 48%