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Feline_Diabetes t1_j8he7w7 wrote

Reply to comment by kittylikker_ in Why do dopamine reuptake inhibitors not treat Parkinson's disease? by unripenedboyparts

Tryptophan usually is the precursor to serotonin so wouldn't generally affect dopamine production.

Tyrosine is the main AA for dopamine, but its conversion to L-DOPA is the rate-limiting step, so supplementing it doesn't really help. You need to give L-DOPA to bypass that reaction if you want to bump dopamine levels.

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