Liver and Detox
    Moderate Evidence

    Glutathione Enhancement

    Increase in the body's master antioxidant, critical for detoxification, immune function, and cellular protection. Supported by NAC, selenium, and glutathione precursors.

    TL;DR

    Oral glutathione is largely broken down before absorption, so precursors work better. NAC and adequate selenium and glycine give the body what it needs to make its own.

    Why It Matters

    Glutathione is central to phase II detoxification, redox balance and immune function. Depletion occurs in paracetamol overdose, chronic liver disease, HIV and severe oxidative stress states, and is genuinely clinically significant in those settings.

    How to Measure

    Biomarkers

    Whole blood glutathione
    GSH to GSSG ratio
    Selenium status
    GGT
    Liver enzymes

    Optimization Protocol

    Ensure adequate protein for cysteine and glycine, and correct selenium status, since glutathione peroxidase is selenium-dependent. NAC 600-1200 mg daily is the best-supported precursor. Cruciferous vegetables and reduced alcohol intake also help. Liposomal glutathione absorbs better than standard oral forms.

    Supporting Supplements

    Supporting Research

    Frequently Asked Questions

    Does oral glutathione raise body levels?
    Poorly - it is largely broken down during digestion. Liposomal and sublingual forms show better absorption in small studies, but clinical benefit remains unproven.
    Is NAC a better option?
    Generally yes. N-acetylcysteine at 600-1,800 mg/day supplies cysteine, the rate-limiting precursor, and is used clinically in paracetamol overdose and some respiratory conditions.
    Does selenium matter?
    Yes, as a cofactor for glutathione peroxidase. Correcting deficiency helps; excess above 400 micrograms/day risks selenosis with hair and nail changes.
    Do glutathione injections or IV drips help?
    There is no good evidence for wellness or skin-lightening use, and IV administration carries infection and reaction risks. Not recommended outside clinical indications.
    Does whey protein raise glutathione?
    Whey provides cysteine and has raised glutathione in some small trials, particularly at 20-40 g/day in depleted populations.
    Can glutathione status be tested?
    Not usefully in routine care. Blood glutathione does not reflect tissue levels well, so testing rarely changes management.

    Typical Timeframe

    4-8 weeks

    Research Summary

    Studies5
    Supplements3
    Evidence
    Moderate Evidence

    My Notes

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    This information is for educational purposes only. Always consult a healthcare professional before starting any supplement regimen.