Outcome
    Limited

    Pterostilbene for Sirtuin Activation

    Pterostilbene is better absorbed than resveratrol but inherits the same unproven premise.

    Overview

    Pterostilbene is better absorbed than resveratrol but inherits the same unproven premise.

    Verdict

    Insufficient evidence

    How It Works

    Methylated stilbene with greater bioavailability and proposed sirtuin and AMPK modulation.

    Dosing & Protocol

    Typical dose

    Recommended dose
    50-100mg/day
    Expected timeframe
    8-12 weeks

    Protocol

    form
    Pterostilbene
    duration
    Human trials ran 6-8 weeks
    co factor
    Evidence is insufficient. Pterostilbene, like resveratrol, is described as a sirtuin-activating compound, and cell and rodent studies show increased SIRT1 expression and activity, downstream AMPK activation, PGC-1alpha upregulation and effects on mitochondrial function. The wider sirtuin field has been contentious: the original resveratrol SIRT1 findings were challenged as an artefact of the fluorophore-tagged substrate used in the assay, and the resulting debate has not fully resolved. In humans, no trial has measured sirtuin activity, expression or any validated downstream marker after pterostilbene. Sirtuin activation is also a mechanism, not a health outcome.
    titration
    Not applicable - no human dose-response for sirtuin activation exists
    starting dose
    Not established for this outcome. Human trials used 50-250 mg/day and did not measure sirtuin activity

    Evidence

    What the studies say

    Small human trials show lipid and blood pressure effects but no demonstrated sirtuin-mediated clinical benefit. Often paired with NAD+ precursors on mechanistic grounds alone.

    No studies are yet linked to both Pterostilbene and Sirtuin Activation.

    Safety

    Caveats

    Raised LDL reported at higher doses in one trial. Evidence base is thin.

    Less likely to help if

    Everyone - sirtuin activation has never been measured in humans and is not a health outcome.

    Medical Disclaimer

    The information provided on this website is for educational and informational purposes only and is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition or before starting any supplement regimen.

    Individual results may vary. The statements on this website have not been evaluated by the Food and Drug Administration. Products and information are not intended to diagnose, treat, cure, or prevent any disease.