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An RCT of 37 adults with metabolic syndrome found that tributyrin supplementation (600mg/day for 12 weeks) significantly reduced intestinal permeability markers and plasma LPS-binding protein levels, indicating improved gut barrier function compared to placebo.
| Study | Participants | Finding | Quality |
|---|---|---|---|
Oral tributyrin supplementation reduces adiposity and inflammation markers in adults with metabolic syndrome: a randomized, double-blind, placebo-controlled trial Coppola S, Avagliano C, Calignano A, Berni Canani R — Clinical Nutrition (2021) | 37 | Tributyrin 600mg/day reduced intestinal permeability markers and inflammatory biomarkers over 12 weeks | Moderate |
For adults with signs of increased intestinal permeability or metabolic dysfunction, tributyrin at 300-600mg/day offers a well-tolerated form of butyrate that reaches the colon intact. It is preferable to sodium butyrate for smell/taste and may be more effective due to sustained release. Allow 8-12 weeks for measurable gut barrier improvements.
A randomized controlled trial evaluating tributyrin as a structured lipid for targeted butyrate delivery to the colon, assessing effects on gut barrier integrity, intestinal permeability, and inflammatory markers in adults with metabolic syndrome.
Tributyrin is a triglyceride consisting of three butyrate molecules bound to a glycerol backbone. Unlike free butyrate (sodium or calcium butyrate), tributyrin is odorless and tasteless, and the butyrate is released gradually as it passes through the GI tract, providing more sustained delivery to the colon.
Clinical evidence suggests yes. An RCT found tributyrin improved intestinal permeability markers (lactulose/mannitol ratio) and reduced LPS-binding protein, which indicates less endotoxin crossing the gut barrier. Butyrate is the primary fuel for colonocytes that maintain the gut lining.
Clinical trials have used 300-600mg/day of tributyrin. Start at 300mg/day and increase to 600mg/day after 1-2 weeks. Take with meals for best absorption. This provides roughly 200-400mg of butyrate in a sustained-release form.
Tributyrin has two practical advantages: it has no offensive smell or taste (sodium butyrate has a strong rancid odor), and it provides more sustained butyrate release throughout the colon. Clinical tolerability is better with tributyrin. Both forms deliver butyrate, but tributyrin is generally preferred.
Your gut bacteria naturally produce butyrate when you eat fiber-rich foods. Butter and ghee contain small amounts of tributyrin. However, for therapeutic gut barrier support, supplement doses (300-600mg/day) provide far more butyrate than dietary sources alone.