Mucuna Pruriens and L-Tyrosine on Dopamine
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In search of a more sustainable alternative to elevate dopamine levels without prescription medication, many have turned to L-tyrosine. L-tyrosine is an amino acid precursor that exists earlier in the dopamine synthesis pathway than L-dopa.
Mucuna Pruriens, being dopaminergic, can induce a temporary state of increased motivation and alertness. However, similar to other compounds that elevate dopamine, a subsequent decline in enthusiasm and energy is commonly experienced once its effects wear off.
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The over-the-counter availability and the ability to boost energy and focus without the need for prescriptions contribute to its popularity.
Huberman highlights that L-tyrosine is generally ingested in dosages ranging from 500 to 1000 milligrams, in either capsule or powder form, and effectively stimulates dopamine production.
Post-consumption, peak levels of dopamine are observed within 30 to 45 minutes. However, as evidenced by a pivotal 1983 study in the Journal of Clinical Endocrinology and Metabolism, this upsurge in dopamine is ephemeral; levels return to baseline after a brief period, and may potentially fall below baseline due to depletion of dopamine reserves.
The impact of L-tyrosine is distinct and does not produce a placebo effect, as demonstrated when its effects were compared to those of tryptophan, a precursor to serotonin. Importantly, L-tyrosine increases dopamine without affecting serotonin levels, underscoring the precise influence it has on neurotransmitter pathways.
Despite its benefits, Huberman cautions that substances like Mucuna Pruriens and L-tyrosine aren’t universally beneficial.
Individuals with dopaminergic disorders, including schizophrenia, bipolar disorder, and certain anxiety conditions, should avoid these compounds.
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Links
Review on Dopamine: https://www.nature.com/articles/s41583-021-00455-7Cold Exposure & Dopamine: https://link.springer.com/article/10.1007/s004210050065