Side-by-side comparison of mechanisms, dosing, interactions, and stacking potential.
| Resveratrol | TUDCA (Tauroursodeoxycholic Acid) | |
|---|---|---|
| Category | Supplements | Supplements |
| Standard Dose | 250-500mg trans-resveratrol daily | 250-500mg daily |
| Timing | Morning with a fat-containing meal. Often taken alongside NMN for synergistic sirtuin activation. | With meals for liver support. Some protocols recommend before meals to prime bile flow. |
| Cycle Duration | ongoing | Cycle 4-8 weeks for liver support; ongoing at low dose for chronic liver conditions under supervision |
| Evidence Level | moderate_human | Moderate-Strong |
Resveratrol activates SIRT1 (the longevity sirtuin) via allosteric binding, promoting deacetylation of PGC-1alpha (mitochondrial biogenesis), FOXO3 (stress resistance), and p53 (DNA repair). It inhibits NF-kB and COX-2, reducing chronic inflammation. Resveratrol also activates AMPK independently of SIRT1 and inhibits phosphodiesterases (PDEs), raising cAMP levels. It improves endothelial function via eNOS upregulation and NO production.
250-500mg trans-resveratrol daily
Morning with a fat-containing meal. Often taken alongside NMN for synergistic sirtuin activation.
ongoing
TUDCA is a water-soluble bile acid conjugate (taurine + ursodeoxycholic acid) with potent hepatoprotective and cytoprotective properties. It inhibits the mitochondrial pathway of apoptosis by preventing BAX translocation to mitochondria and cytochrome c release. TUDCA reduces endoplasmic reticulum (ER) stress by acting as a chemical chaperone, assisting protein folding and reducing the unfolded protein response (UPR). It protects hepatocytes by stabilizing cell membranes, displacing toxic hydrophobic bile acids (chenodeoxycholic, lithocholic) from biliary epithelium, and promoting choleresis (bile flow). Additionally, it has neuroprotective effects via reduction of ER stress in neurons and modulation of the TGR5 bile acid receptor.
250-500mg daily
With meals for liver support. Some protocols recommend before meals to prime bile flow.
Cycle 4-8 weeks for liver support; ongoing at low dose for chronic liver conditions under supervision
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