When should I call my doctor if I am taking tryptophan?

You should call your doctor before you start taking tryptophan (also called L-tryptophan), to ask whether the supplement is safe for you to take. Tryptophan was linked to the outbreak of a serious neurological condition that led to a number of deaths in 1989. It was temporarily banned, and although it is once again available, it is still considered possibly unsafe.

There is only preliminary evidence that tryptophan can help with some of the conditions people are most likely to take it for, including insomnia, depression and sleep apnea.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.