Phosphatidylserine (PS) vs Tributyrin (Butyrate Prodrug)

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

Phosphatidylserine (PS)Tributyrin (Butyrate Prodrug)
CategorySupplementsSupplements
Standard Dose
Timing
Cycle Duration
Evidence LevelModerate-StrongModerate

Mechanism

Phospholipid concentrated in brain cell membranes. Supports neurotransmitter production (acetylcholine, dopamine), cortisol regulation, and membrane fluidity. Improves cognitive function, reduces exercise-induced cortisol, and supports HPA axis recovery.

Contraindications

  • Soy allergy (if soy-derived — use sunflower-derived instead)

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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