5 HTP for Depression, Anxiety, and More

7 Oct 2021 · 24 min
23:56

Dr. Nicole Cain (YouTube Live) explains 5-HTP (5-hydroxytryptophan)—its role as a serotonin precursor, how it is produced from tryptophan, and how it crosses the blood–brain barrier. She outlines the biochemical pathways: tryptophan → 5-HTP → serotonin (via AAAD enzyme), the competing kynurenine pathway (which can produce quinolinic acid and NAD), and shared enzyme competition with dopamine/NE/epinephrine. She discusses clinical uses (anxiety, depression, sleep, pain, weight), risks (dopamine depletion, serotonin syndrome), testing options (genetic tests like MTHFR, MAO, COMT; organic acid tests for quinolinic acid, HVA, 5-HIAA), and practical precautions (avoid combining with serotonergic antidepressants without medical advice; balance with tyrosine/L-DOPA and cofactors). A supplement "blueprint" and handout are promised in follow-up.

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