The role of dietary fiber in the treatment of diabetes: Undoubtedly, diet therapy is the most important basis in the treatment of diabetes, and is also the most important concern of patients. At present, the value of reasonable and appropriate amount of dietary fiber in the dietary treatment of diabetes is being widely appreciated, and it is found that dietary fiber has the following multifaceted roles in regulating metabolic abnormalities and gastrointestinal dysfunction in diabetic patients: 1. Although oligofructose cannot be Although oligofructose cannot be digested and decomposed by the stomach and small intestine, it can be used by beneficial bacteria (Bifidobacterium and Lactobacillus) in the large intestine to rapidly promote its value-added, inhibit harmful bacteria, improve the intestinal microenvironment, and help intestinal E. coli to synthesize a variety of vitamins, biphasic regulation of diarrhea and constipation; 2, the large size of polyfructose, occupying a larger space in the gastrointestinal tract, can stimulate the gastrointestinal tract after eating, resulting in increased secretion of digestive juices and enhanced peristalsis of the gastrointestinal tract. 3, small specific gravity of fiber, large volume, occupy more space in the gastrointestinal, so that people have a sense of satiety, reduce the amount of food, conducive to weight loss; 4, reduce blood lipids: oligofructose fermentation of short-chain fatty acids, which can inhibit the synthesis of cholesterol propionate, while fructose through the absorption of intestinal fat, the formation of fat-fiber complex with the stool, thus reducing the level of blood lipids High fiber diet can slow down the absorption of sugar by delaying gastric emptying, changing intestinal transit time, and forming gel of soluble fiber in the intestine, etc. It can also reduce the secretion of intestinal hormones such as gastrin or pancreatic glucagon, reduce the stimulation of pancreatic B cells, reduce insulin release and increase the sensitivity of surrounding insulin receptors, enhance glucose metabolism, reduce postprandial hyperglycemia, and reduce the dose of insulin and oral hypoglycemic drugs. The application dose of hypoglycemic drugs.