Research

Mixed

Whole grains modulate the gut microbiota by providing indigestible carbohydrates (dietary fiber) that serve as substrates for microbial fermentation, leading to the production of beneficial short-chain fatty acids (SCFAs) like butyrate.

Include a variety of whole grains in your diet to support a diverse gut microbiota. Different grains provide different types of fiber, which feed different beneficial bacteria. This fermentation process produces short-chain fatty acids like butyrate, which support gut health and reduce inflammation. Increase fiber intake gradually to minimize digestive discomfort.

GoodSupportsHIGH confidence
Indigestible carbohydrates (dietary fibers) that contribute to improving dietary carbohydrate quality are the major substrates for microbes in the GI tract... Fermentation of carbohydrates leads to the production of so-called short-chain fatty acids (SCFAs; primarily acetate, propionate and butyrate)... Particularly butyrate has attracted a lot of attention as it has been shown to have numerous benefits.
Chris J. Seal et al. · Comprehensive Reviews in Food Science and Food Safety · 2021

Why this rating

Supported by extensive research on gut microbiota and SCFA production cited in the paper.

Source

Health benefits of whole grain: effects on dietary carbohydrate quality, the gut microbiome, and consequences of processing

Chris J. Seal et al. · Comprehensive Reviews in Food Science and Food Safety · 2021

DOI 10.1111/1541-4337.12728

narrative_reviewCited 182×
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DOI resolved against Crossref · corpus check 2026-06-10

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