TUDCA vs Urolithin A

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

TUDCAUrolithin A
CategorySupplementsSupplements
Standard Dose
Timing
Cycle Duration
Evidence LevelModerateModerate-Strong
A

TUDCA

Supplements

Mechanism

Hydrophilic bile acid that stabilizes hepatocyte membranes, supports bile flow, and reduces endoplasmic reticulum stress. Often used in higher-load liver support and lipid-heavy protocols.

Contraindications

  • Caution with active gallbladder obstruction
B

Urolithin A

Supplements

Mechanism

Gut metabolite of ellagitannins that activates mitophagy — selective clearance of damaged mitochondria. Improves mitochondrial function, muscle endurance, and cellular energy production. Only ~40% of population can produce it endogenously.

Contraindications

  • Limited long-term safety data beyond 4 months

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