Graded against 178,763 supplements and 757 reviewed supplement and medication pairs, sourced from PubMed, FDA CAERS, openFDA, NIH DSLD
Butyrate / Butyric Acid
SupplementLast updated
AVELOR SUMMARY
Butyrate is the most important short-chain fatty acid (SCFA) for gut health, it's the PRIMARY energy source for colonocytes (cells lining your colon get 70% of their energy from butyrate, not glucose).
Your gut bacteria produce it by fermenting dietary fiber.
Our research shows butyrate has profound effects: it maintains intestinal barrier integrity (prevents "leaky gut"), has anti-cancer effects in colorectal tissue (paradoxically, it feeds normal colonocytes but kills cancer cells via the "butyrate paradox"), reduces inflammation via HDAC inhibition, and has emerging evidence for brain function via the gut-brain axis.
Supplemental butyrate (as sodium/calcium butyrate or tributyrin) can bypass the need for fiber fermentation.
WHAT IT DOES
Butyrate's mechanisms: (1) Colonocyte fuel, enters mitochondria via β-oxidation, providing 70% of colonocyte ATP (healthy colonocytes preferentially use butyrate over glucose); (2) HDAC inhibition, butyrate is a class I/II histone deacetylase inhibitor, altering gene expression toward anti-inflammatory, anti-proliferative, and pro-apoptotic programs (this is the anti-cancer mechanism); (3) GPR41/GPR43/GPR109A receptor activation, these SCFA receptors on immune cells, enteroendocrine cells, and neurons mediate immune tolerance (Treg induction), GLP-1/PYY secretion (satiety), and gut-brain signaling; (4) tight junction protein upregulation, increases expression of claudins and occludin, strengthening the intestinal barrier; (5) mucosal blood flow increase, vasodilatory effects in colonic vasculature.
OPTIMAL DOSAGE
Look for: Tributyrin (ProButyrate®, best delivery to colon); sodium butyrate; calcium/magnesium butyrate; enteric-coated or delayed-release; 300-600mg per serving
Avoid: Plain butyric acid liquid (rancid smell, gastric irritation); products without delayed-release (butyrate absorbed in small intestine before reaching colon)
Independently graded against 178,763 indexed supplements and 757 reviewed supplement and medication pairs, sourced from PubMed, FDA CAERS, openFDA, and NIH DSLD | Last updated:
Not medical advice. Based on published clinical research and systematic reviews.