Resveratrol Dosage Calculator

What is Resveratrol?

Resveratrol (3,5,4′-trihydroxystilbene) is a polyphenolic compound produced by plants under stress. Its identification as a potent SIRT1 activator by Howitz et al. (Nature, 2003) triggered a revolution in longevity research. SIRT1 is a NAD⁺-dependent deacetylase that orchestrates cellular stress responses, DNA repair, mitochondrial biogenesis (via PGC-1α), and metabolic adaptation to caloric restriction — pathways converging on extended healthspan in multiple organisms. The landmark study by Baur et al. (Nature, 2006, PMID 17086191) demonstrated that resveratrol supplementation in mice fed a high-calorie diet extended median lifespan by 15%, reduced insulin resistance, prevented hepatic steatosis, and broadly shifted the gene expression profile towards that of caloric restriction. Lagouge et al. (Cell, 2006, PMID 17112576) showed that resveratrol activated PGC-1α via SIRT1 deacetylation, dramatically increasing mitochondrial biogenesis and endurance capacity in mice. In humans, resveratrol's clinical performance has been more nuanced. Its oral bioavailability is low (~1%) due to rapid phase II conjugation (glucuronidation and sulfation) in the intestinal wall. Peak plasma concentrations after 500 mg oral dosing are typically < 100 ng/mL — substantially below concentrations needed for direct SIRT1 activation in cell culture. This pharmacokinetic challenge has led to the development of micronised resveratrol (particle size < 5 μm) and combination formulations with piperine (20 mg increases resveratrol bioavailability ~229%). Despite these limitations, multiple human RCTs report benefits in blood pressure, insulin sensitivity, cognitive function in older adults, and inflammatory markers — suggesting biologically relevant effects even at lower systemic concentrations, possibly via gut microbiome modulation.

How to Take Resveratrol

**General cardioprotective / antioxidant use:** 150–500 mg/day of standard trans-resveratrol. Most positive human RCTs have used 150–500 mg/day over 8–24 weeks. **Anti-aging protocol:** 500–1,000 mg/day of micronised or pterostilbene-enhanced trans-resveratrol. David Sinclair's publicly disclosed stack includes 500–1,000 mg/day taken with NMN and a fat-containing meal (resveratrol is highly lipophilic; yogurt or olive oil increases absorption approximately 5-fold). Pterostilbene (a dimethylated analogue of resveratrol from blueberries) has ~80% oral bioavailability versus ~1% for resveratrol and crosses the blood-brain barrier more effectively — it may be preferable for cognitive longevity goals at 50–150 mg/day. Always take with a fat-containing meal. Combining with piperine (black pepper extract, 20 mg) significantly enhances plasma resveratrol levels.

Timing Recommendations

Take with the largest fat-containing meal of the day. Co-administration with NMN (both taken together in the morning) is rational: resveratrol activates SIRT1, while NMN provides the NAD⁺ substrate SIRT1 requires — a synergistic combination demonstrated in the Sinclair laboratory.

Potential Side Effects & Safety

Well tolerated at doses up to 1,500 mg/day in short-term studies. Mild GI effects (nausea, diarrhoea) at higher doses. Resveratrol weakly inhibits CYP3A4 and CYP2C9 — significant drug interactions are possible with warfarin, statins (simvastatin, lovastatin), and immunosuppressants (cyclosporine). One RCT reported that high-dose resveratrol (1,000 mg/day) in elderly men blunted the anti-inflammatory benefits of exercise training — suggesting it may inhibit adaptive hormesis; avoid high doses immediately around exercise sessions.

Best Stacks with Resveratrol

NMN + resveratrol + quercetin is the foundational longevity trio — covering NAD⁺ replenishment (NMN), sirtuin activation (resveratrol), and senolytic/CD38 inhibition (quercetin). Fisetin completes the senolytic stack. Add spermidine for autophagy induction via a complementary pathway.

Scientific References

All dosage recommendations are grounded in peer-reviewed research.

1. 1
   Resveratrol improves health and survival of mice on a high-calorie diet

   Nature · 2006

2. 2
   Resveratrol improves mitochondrial function and protects against metabolic disease by activating SIRT1 and PGC-1α

   Cell · 2006

3. 3
   Resveratrol — a double-edged sword in health benefits

   Biomedicines · 2020