Keep the digestive system healthy
boost one's immune system
Lowering cholesterol and hypertension
Reduce insulin and triglycerides
◇ Relaxation, diuresis, clearing intestine and invigorating stomach
Prevent cardiovascular diseases, cancer, diabetes and other diseases.
Balance hormones in the body and reduce hormone-related cancers.
Dietary fiber and human health
Dietary fiber refers to the sum of edible plant components, carbohydrates and similar substances that can resist digestion and absorption of human small intestine and can be fermented partially or completely in human large intestine, including polysaccharides, oligosaccharides, lignin and related plant substances. In daily life, people tend to confuse dietary fiber, crude fiber and cellulose. Crude fiber is only a part of dietary fiber, which refers to the residue left by plant tissues after being treated with a certain concentration of acid, alkali, alcohol, ether and other reagents for a certain period of time at a certain temperature. Its main components are cellulose and lignin. Cellulose is only a part of crude fiber, which is a single compound and a linear compound with glucose linked by β- 1 4 glycosidic bond. It can be seen that the amount of dietary fiber is more than crude fiber and cellulose. Crude fiber is the most common component in dietary fiber, and cellulose is the main component of dietary fiber.
Physiological Function of Dietary Fiber Although dietary fiber cannot be digested and absorbed by human body, it plays an important physiological role in the body and is an essential nutrient for maintaining human health. Dietary fiber is known as "intestinal cleaner" because of its outstanding role in preventing gastrointestinal diseases and maintaining gastrointestinal health. 1) The water absorption and swelling properties of dietary fiber are beneficial to increase the volume of chyme, stimulate the peristalsis of gastrointestinal tract, soften feces, prevent constipation, promote defecation and increase defecation times, play a role in drainage, reduce the retention time of feces in intestinal tract and the contact between harmful substances in feces and intestinal tract, and keep intestinal tract clean, thus reducing and preventing gastrointestinal diseases. 2) Dietary fiber can inhibit the absorption of cholesterol and prevent hyperlipidemia and hypertension. 3) Dietary fiber can delay and reduce the absorption of harmful substances such as heavy metals, and alleviate and prevent the toxic effects of harmful chemicals on human body. 4) Dietary fiber can improve intestinal flora, maintain microecological balance in vivo, and is beneficial to the synthesis of some nutrients. 5) Water-soluble dietary fiber has a strong water absorption and expansion performance, which expands after water absorption, and its volume and weight increase by/kloc-0 ~15 times, which can not only increase people's satiety, but also reduce the absorption of fat in food, reduce the calorie ratio of fat in diet, relatively control and reduce the total dietary energy, and avoid excessive accumulation of fat in the body caused by excessive heat energy, which can not only solve the problem of satiety, but also achieve the goal of. 6) Scientific research has found that soluble dietary fiber has the best effect in controlling the sharp rise of postprandial blood sugar and improving glucose tolerance. Dietary fiber can delay the absorption of glucose, delay the digestion of digestible sugars such as starch, avoid the sharp rise of postprandial blood sugar, enhance the sensitivity of dietary fiber to insulin, directly affect the function of islet A cells, improve the regulation of insulin in blood, improve the degree of glucose tolerance of human body, and be beneficial to the treatment and rehabilitation of diabetes. Studies have shown that a diet with sufficient dietary fiber content has special effects in preventing and treating diabetes.