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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