L-5-hydroxytryptophan (PhenCal,Thin-Thin, etc)
June 1998
The FDA has put out a warning about L-5-hydroxytryptophan(PhenCal, Thin-Thin, etc).
L-5-hydroxytryptophan is a metabolite of L-tryptophan.
These amino acids are used to increase serotonin production.People take them for weight loss...depression...insomnia, etc.
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