Effect of L-tyrosine on catecholamine synthesis and stress responses: a systematic review
Young SN
Published in Journal of Psychiatry and Neuroscience
Methodology
Review of human studies of tyrosine availability, catecholamine synthesis and behavioural performance under acute stressors.
Key Findings
Tyrosine supported noradrenaline and dopamine synthesis under acute stress but did not alter catecholamine function under normal conditions.
Conclusions
Tyrosine sustains norepinephrine synthesis when depletion is stress-driven.
Limitations
Mostly small acute-dosing studies; limited chronic data.
Supplements Studied
Tyrosine supported noradrenaline and dopamine synthesis under acute stress
Outcomes Measured
Tyrosine supported noradrenaline and dopamine synthesis under acute stress but did not alter catecholamine function under normal conditions
Study Details
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