Resistant starch types 2 and 4 induce distinct and reversible changes in the human gut microbiome.
Elisa Piperni, Aitor Blanco-Míguez, Claudia Mengoni et al.
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In 30 seconds
This randomized controlled trial investigated the effects of two types of resistant starch (RS2 and RS4) on the gut microbiome in humans. The study found that both RS types induced distinct and reversible changes in microbial composition, with RS2 enriching Ruminococcus bromii and RS4 favoring Parabacteroides distasonis. These findings highlight the potential for personalized dietary interventions based on resistant starch type.
Key findings
- RS2 enriched Ruminococcus bromii and Blautia glucerasea, while RS4 favored Parabacteroides distasonis.
- Distinct strain-level responses were observed in Bifidobacterium adolescentis to resistant starch types.
- Increased abundance of genes related to complex carbohydrate utilization was noted after resistant starch intake.
Why it matters
Understanding how different types of resistant starch affect the gut microbiome can inform dietary strategies aimed at improving metabolic health. This knowledge may lead to more personalized nutrition approaches that optimize individual responses to dietary fibers.