Glucoraphanin conversion into sulforaphane and related compounds by gut microbiota.
Level 5 - mechanism / opinion, no new human data
Narrative review of biochemical and physiological mechanisms without original data or systematic review methodology.
PubMed 39995480 · doi:10.3389/fphys.2025.1497566
What was done
This narrative review synthesized literature on the bidirectional interactions between dietary glucoraphanin, its metabolite sulforaphane, and the gut microbiota, focusing on microbial hydrolysis mechanisms, conversion pathways, and intestinal barrier regulation.
What was found
The abstract reports no numerical findings or quantitative metrics. It notes that mammals lack endogenous myrosinase-like activity, necessitating gut microbiota to convert plant-derived glucoraphanin into sulforaphane, sulforaphane-nitrile, glucoerucin, erucin, and erucin-nitrile. Microbiome composition influences conversion efficiency, while sulforaphane reciprocally modulates gut microbial composition and supports intestinal homeostasis.
Why it matters
It emphasizes the essential role of gut microbiota composition in determining the bioavailability and biological activity of health-promoting compounds from cruciferous vegetables.
Limits
The abstract provides no quantitative data or conversion rates. As a narrative review, it presents mechanistic syntheses without systematic search methodology, meta-analytic pooling, or original human trial data.
Cited by
- context The majority of the conversion of glucoraphanin to sulforaphane is performed by gut bacteria in the colon.