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由于纤维似能增大粪便的体积和缩短食物通过小肠的时间,因此它对脂质排泄的影响引起很多研究者的重视。portman等用半精制无纤维、含淀粉的饲料喂大鼠,发现试验组动物排出的胆酸量比吃正常饲料的少72%,中性固醇少36%,大鼠体内胆酸的半减期增加62%。如以蔗糖代替饲料中的淀粉,则二者的排泄量均进一步下降,胆酸的半减期进一步增加。Leveille等发现果胶对饲以胆固醇的大鼠血清及肝脏中的脂质含量变化不大,但胆汁酸的排泄量却显著增加。本文作者用含有占总热量50%的蛋白质
Because of its ability to increase the volume of faeces and shorten the time it takes for the food to pass through the small intestine, its influence on lipid excretion has attracted the attention of many researchers. Portman and other semi-refined fiber-free, starch-containing diet fed rats and found that the test group of animals than the normal amount of bile acid eaten 72% less than normal feed, neutral sterols, less 36% of rat bile acid half The reduction of 62% increase. As with sucrose to replace the starch in the feed, the two excretions were further decreased, bile acid half-life further increased. Leveille et al found that pectin did not change the lipid content of the serum and liver of rats fed cholesterol, but the bile acid excretion was significantly increased. The author uses 50% of the total calories with the protein