Mixed
High-dose long-chain corn bran arabinoxylan supplementation increases fecal propionate concentrations in adults with overweight and obesity, driven by specific shifts in gut microbiota composition (Bifidobacterium longum, Bacteroides obeum, and Prevotella succinatutens) rather than baseline microbiota.
If you have overweight or obesity, adding high-dose corn bran arabinoxylan (25-35g/day) can boost beneficial gut bacteria that produce propionate, a metabolite linked to metabolic health. However, results vary by person; your specific gut bacteria determine if and how much propionate you produce. Consistency is key, as effects were seen within one week.
Arabinoxylan further increased fecal propionate concentrations (p = 0.012, Friedman’s test)... multiple linear regression (MLR) analyses revealed that the propionate response was predictable through shifts and, to a lesser degree, baseline composition of the microbiota.
Why this rating
Randomized controlled trial with a control group, though exploratory and small sample size (n=31).
Source
Gut microbiota modulation with long-chain corn bran arabinoxylan in adults with overweight and obesity is linked to an individualized temporal increase in fecal propionate
Nguyen K. Nguyen et al. · Microbiome · 2020
DOI 10.1186/s40168-020-00887-w
Related findings · Mixed
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