Outcome
    Limited

    L-Citrulline for Venous Return

    Citrulline improves arterial vasodilation, which is not the same as venous return.

    Overview

    Citrulline improves arterial vasodilation, which is not the same as venous return.

    Verdict

    Insufficient evidence

    How It Works

    Raises arginine and nitric oxide availability, promoting arterial vasodilation.

    Dosing & Protocol

    Typical dose

    Recommended dose
    3-6 g L-citrulline daily (mechanistic extrapolation)
    Expected timeframe
    Not established

    Protocol

    dose
    3-6 g/day
    form
    L-citrulline
    timing
    Daily
    duration
    Not established

    Evidence

    What the studies say

    Trials support improved endothelial function and exercise performance. No trials address venous insufficiency or venous return specifically.

    Beetroot juice supplementation, plasma nitrite and exercise performance: a systematic review and meta-analysis

    Score: 7/10
    2013
    meta_analysis
    n=268

    Hoon MW, Johnson NA, Chapman PG +1 more

    Nitrate elevated plasma nitrite and improved time-to-exhaustion

    View source

    Safety

    Caveats

    INSUFFICIENT verdict — citrulline raises NO (arterial dilation), but direct venous-return or venous-insufficiency trials are lacking. Do not use in place of compression, movement, or medical care for venous disease; chronic leg swelling warrants evaluation. Nitrate/PDE5 interaction applies.

    Less likely to help if

    Unknown

    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.