crossover
    2012

    Oral intake of gamma-aminobutyric acid affects mood and activities of central nervous system during stressed condition induced by mental tasks

    Yoto A, Murao S, Motoki M, Yokoyama Y, Horie N, Takeshima K, Masuda K, Kim M, Yokogoshi H

    Published in Amino Acids

    Key Findings

    In 63 adults, 100 mg oral GABA reduced psychological fatigue and improved task-performance measures versus dextrin placebo during mental stress.

    Conclusions

    Single doses of oral GABA modestly improved mood under acute mental stress.

    Limitations

    Single-blind design, acute single dose, self-report outcomes, industry involvement.

    Supplements Studied

    GABA
    Amino Acid

    Capsules containing 100 mg of GABA or dextrin as a placebo were used as test samples.

    Outcomes Measured

    GABA Enhancement

    Capsules containing 100 mg of GABA or dextrin as a placebo were used as test samples.

    Study Details

    Year:2012
    Sample Size:63
    Duration:1 weeks
    Quality Score:5/10

    Access Study

    View on DOIView on PubMedOriginal Source

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