Outcome
    Limited

    Magnesium for Shift Work Adaptation

    Magnesium may improve daytime sleep quality, particularly if intake is low.

    Overview

    Magnesium may improve daytime sleep quality, particularly if intake is low.

    Verdict

    Insufficient evidence

    How It Works

    Modulates NMDA and GABA-A receptor activity supporting sleep initiation.

    Dosing & Protocol

    Typical dose

    Recommended dose
    200-400mg glycinate before sleep
    Expected timeframe
    2-4 weeks

    Protocol

    form
    Not applicable
    duration
    Not applicable
    co factor
    Evidence is insufficient. Shift work adaptation is a circadian problem, and the interventions with evidence are timed bright light, strategically timed melatonin, planned napping and deliberate caffeine use during the shift - with prescribed wakefulness-promoting agents for diagnosed shift work disorder. Magnesium has no chronobiotic activity, meaning it cannot shift the timing of the body clock, and no trial has studied it in shift workers. What magnesium does have is modest evidence for sleep quality and anxiety in people with low magnesium status, which might marginally ease daytime sleep, though this has not been tested in a misaligned circadian phase - the hardest part of shift work is that daytime sleep occurs when the clock is signalling wake, which magnesium does not change.
    titration
    Not applicable
    starting dose
    Not applicable as an established treatment for shift work adaptation

    Evidence

    What the studies say

    Small trials in older adults with insomnia show improved sleep efficiency. No shift-work-specific trials exist.

    No studies are yet linked to both Magnesium and Shift Work Adaptation.

    Safety

    Caveats

    Does not shift circadian phase; use alongside light management, not instead of it.

    Less likely to help if

    Everyone: magnesium does not shift circadian phase and has no shift work data.

    Medical Disclaimer

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    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.