At present, the food people eat is basically refined food. Over-processed foods, such as rice, pasta, steamed buns, breakfast, desserts, cakes, frozen foods in supermarkets, meatballs, packaged foods, snacks, etc. , all make people lack non-essential nutrients such as dietary fiber. First of all, dietary fiber is immediately recognized as the seventh largest nutrient, which shows that its role in the human body is very important and it is an essential nutrient to maintain human health. Dietary fiber can be divided into soluble dietary fiber and insoluble dietary fiber according to its solubility in water. Soluble dietary fiber mainly refers to pectin, vegetable gum and so on. , mainly found in fruits, konjac and other foods. The main sources of insoluble dietary fiber are vegetables (mainly some green leafy vegetables, especially celery), coarse grains and beans.

Because modern people eat a fine diet, mainly flour and rice, such as polished rice and white flour, and eat less vegetables, they are seriously short of dietary fiber, which leads to some diseases such as obesity, diabetes, hyperlipidemia, and some diseases related to too little dietary fiber, such as intestinal cancer, constipation and intestinal polyps. There are more than a thousand kinds of dietary fibers in nature, including non-starch polysaccharides (cellulose and hemicellulose) and plant polysaccharides (pectin and guar gum). ), microbial polysaccharide (xanthan gum), resistant starch, etc.

Fiber speeds up your intestinal peristalsis. When you eat whole grains rich in insoluble fiber, it will pass through your intestines faster, which will help you feel full and control your appetite better. Now residents' dietary fiber intake is obviously reduced, their lives are better, and there are more food processing technologies. On the contrary, the loss of fiber is increasing, so more obesity, diabetes, hyperlipidemia and hypertension are increasing. Dietary fiber is closely related to human health, including soluble and insoluble dietary fiber, which is composed of non-polysaccharide components such as cellulose, hemicellulose, pectin and lignin.