By Georg Kharchenko 5-HTP (5 hydroxy-tryptophan) is a naturally occurring substance in the human body that is also the rate-limiting step in the biochemical synthesis of serotonin. In this synthesis, [,-tryptophan is converted to 5-HTP by the enzyme tryptophan hydrolase, and then serotonin is produced from 5-HTP. If the tryptophan hydrolase enzyme is inhibited, serotonin […]

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