Pectin is a polysaccharide that naturally exists in the gelatinous layer of adjacent cell walls in plant cells, and is a water-soluble dietary fiber, the seventh essential nutrient. Pectin can't be broken down by the enzymes in saliva, gastric fluid, pancreatic fluid and intestinal fluid, but can be broken down into short-chain fatty acids by the enzymes produced by microbial fermentation in the human colon to reduce intestinal pH, kill harmful bacteria and promote the proliferation of beneficial bacteria, and at the same time, it will also promote the absorption of Ca, P, Fe, Zn, vitamin C, and promote the generation and absorption of B vitamins, niacin and folate in the large intestine. Pectin in the human digestive system, after absorbing water expansion, the food carbohydrates wrapped up, and into a viscous liquid to slow down the absorption of carbohydrates, can effectively maintain postprandial glucose balance; on the other hand, pectin can be adsorbed in the food of heavy metals, undigested celiac fat, cholesterol, and other toxic waste substances; then pectin can also be combined with bile, adsorption of bile discharged through the liver of the blood of excessive sodium, celiac fat, celiac lipids, and so on. In addition, pectin can combine with bile to adsorb excess sodium, celiac fat, celiac lipoprotein, cholesterol and heavy metals in blood discharged through liver, so that it can be rapidly discharged from the body, and adhered to the intestinal lining to form a protective film, preventing the intestinal tract to the secondary absorption of toxic waste materials. These unique physiological functions of pectin not only make the body of carbohydrates, excess undigested fat, cholesterol, heavy metals and other chemical toxic substances metabolic balance, to promote the absorption of a variety of vitamins and minerals, but also to reduce the result of a variety of chronic diseases, and can be said to be the plant in the human body health of the most protective substances