Pentadecanoic Acid (C15:0 / Fatty15) vs Tributyrin (Butyrate Prodrug)

Side-by-side comparison of mechanisms, dosing, interactions, and stacking potential.

Pentadecanoic Acid (C15:0 / Fatty15)Tributyrin (Butyrate Prodrug)
CategorySupplementsSupplements
Standard Dose
Timing
Cycle Duration
Evidence LevelEmergingModerate

Mechanism

Odd-chain saturated fatty acid identified as essential. Strengthens cell membranes by integrating into phospholipid bilayer, activates AMPK and PPAR-alpha/delta, and inhibits mTOR. Repairs mitochondrial function. Epidemiologically associated with reduced cardiometabolic disease.

Contraindications

  • None established

Mechanism

Tributyrin is a triglyceride form of butyrate — a short-chain fatty acid critical for colonocyte health. HDAC inhibitor that supports gut barrier integrity, reduces intestinal inflammation, and modulates immune function. Superior absorption compared to sodium butyrate.

Contraindications

  • None established at standard doses

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