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我们吃下的食物经过消化、吸收,食物残渣就进入了大肠,再经过大肠内细菌的发酵和腐败,就变成了粪便。粪便除了包含食物残渣以外,还包含脱落的肠粘膜上皮细胞和大量细菌,另外,机体代谢的废物也随粪便排出体外。食物残渣是粪便的核心内容物,主要是粗粮、蔬菜中的纤维
We eat the food after digestion and absorption, the food residue into the large intestine, and then through the large intestine bacteria fermentation and corruption, it becomes stool. Excrement contains not only food debris, but also exfoliated intestinal epithelial cells and a large amount of bacteria. In addition, the waste products metabolized by the body are excreted with the excrement. Food debris is the core content of excrement, mainly coarse grains, vegetables in the fiber