Butyrate
TL;DR
Short-chain fatty acid normally produced by gut bacteria fermenting fiber. Fuels colon cells, reduces inflammation, and supports gut barrier integrity. Supplemental forms bypass the need for microbial production.
Safety: Well-tolerated. Unpleasant taste/smell (rancid butter). GI discomfort possible. Tributyrin form is better tolerated than sodium butyrate.
Cost: approximately $20-30/month.
What the research says
Gut barrier integrity and inflammation reduction may improve metabolic markers. Limited direct metabolic syndrome trials in humans. Mostly extrapolated from microbiome research.
Gut-brain axis modulation. Animal studies show neuroprotective effects. Very limited human cognitive data.
May reduce uremic toxin absorption via improved gut barrier. Theoretical benefit. Very early research.
Butyrate on Amazon
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Safety & practical info
Unpleasant taste/smell (rancid butter). GI discomfort possible. Tributyrin form is better tolerated than sodium butyrate.
No documented drug interactions.
Tributyrin form is more expensive but better tolerated and absorbed.
Sources for this page include published meta-analyses, systematic reviews, and NIH dietary supplement fact sheets. All claims reflect the evidence as of early 2026.
This is not medical advice. Consult your healthcare provider before starting any supplement, especially if you take medications.