Synopsis

Source of validity: Scientific
Rating (out of 5): 4

Digestion resistant dextrin, also known as resistant dextrin or sometimes as soluble corn fiber, is a type of dietary fiber that resists digestion in the small intestine and reaches the large intestine (colon) relatively intact. Once in the colon, it serves as a fermentable substrate for beneficial gut microbiota, thereby supporting colonic health. Scientific studies have shown that resistant dextrins can increase stool bulk, improve bowel regularity, and promote the production of short-chain fatty acids (SCFAs) such as butyrate, acetate, and propionate. These SCFAs are important for maintaining colonocyte health, regulating inflammation, and supporting the integrity of the gut barrier.

Multiple clinical trials and reviews, including those published in peer-reviewed journals, have demonstrated that digestion resistant dextrin can positively affect bowel movement frequency, stool consistency, and overall gut microbiome composition. For example, research published in the British Journal of Nutrition and Nutrition Research Reviews confirms that resistant dextrins act as prebiotics and help increase populations of beneficial bacteria such as Bifidobacteria and Lactobacilli in the colon.

Overall, the use of digestion resistant dextrin to support large intestine health is primarily justified by modern scientific evidence rather than traditional use. The strength of evidence is solid but not absolute, hence a rating of 4 out of 5.

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