Inulin is a kind of soluble dietary fiber, which belongs to fructan. It is related to fructooligosaccharides (FOS). Fructose-oligosaccharides have a shorter sugar chain, while inulin has a longer sugar chain. As a result, inulin fermentation is slower and gas production is slower. Inulin has viscous properties when dissolved in water and is often added to yogurt to regulate its consistency. Inulin is slightly sweet, one-tenth as sweet as sucrose, but has no calories. Inulin is not digested by the body itself, and when it enters the large intestine, it is used by our gut bacteria. Inulin has good selectivity, it is basically only used by “good bacteria”, so inulin is one of the recognized prebiotics.
Dietary fiber has been shown to have a number of health benefits. Earlier this year, a blockbuster study by the World Health Organization showed that people who eat diets rich in fiber live longer and have a 16 to 24 percent lower risk of many diseases, including heart disease, diabetes and cancer. In reality, many people don’t eat enough. This has led to the creation of fiber-added foods. Inulin is one of the most common dietary fiber additives. Inulin is also sometimes used as a low-calorie “sugar substitute” additive because of its sweet taste. Inulin is also a prebiotic.
Functions
First, as a prebiotic, inulin can promote the growth and activity of intestinal flora. Simply put, prebiotics are the food of probiotics. Inulin is not absorbed in the stomach, and once it reaches the colon, the metabolites work together with intestinal bacteria such as Lactobacillus and Bifidobacterium to help improve digestion, relieve constipation, promote fat breakdown and strengthen the immune system.
Second, it can improve hyperlipids. During the fermentation of inulin by intestinal bacteria, a large number of short-chain fatty acids are produced. These short-chain fatty acids can improve your metabolic status. Inulin lowers “low-density lipoprotein cholesterol” (LDL) in all populations, according to a systematic review. In people with type 2 diabetes, inulin can increase levels of HDL cholesterol and help them control blood sugar.
Third, it can promote the absorption of trace elements. Some dietary fiber can promote the absorption of trace elements, inulin is one of them. Inulin can effectively promote the absorption of calcium and magnesium in the body.
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