A systematic review of the effect of L-tryptophan supplementation on mood and emotional functioning
Kikuchi AM, Tanabe A, Iwahori Y
Published in Journal of Dietary Supplements
Key Findings
Most trials in healthy adults reported reduced depressive and anxious mood with tryptophan intake, though effects were small and inconsistent.
Conclusions
Modest mood effects in non-clinical populations.
Limitations
Heterogeneous designs, small samples.
Supplements Studied
Most trials in healthy adults reported reduced depressive and anxious mood with tryptophan, though effects were small.
Outcomes Measured
L-tryptophan supplementation was associated with improvements in mood and emotional functioning in several controlled studies.
Tryptophan supplementation improved mood and sleep measures consistent with increased central serotonin synthesis
Related Health Concerns
Study Details
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This information is for educational purposes only. Always consult a healthcare professional before starting any supplement regimen.