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Exogenous Sources of Urinary Phenol and Indole Acids

Abstract

THE phenol and indole acids of human urine have been examined following the ingestion of bananas or coffee. Bananas were tested because of a report that they contain serotonin, norepinephrine, dopamine and possibly 3,4-dihydroxyphenylalanine1. Coffee was investigated because of an observation that vanillic acid is excreted following the ingestion of caffeic acid, but not coffee2, and a suggestion that the excretion of vanillic acid may be related to norepinephrine metabolism and stress3.

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SHAW, K., TREVARTHEN, J. Exogenous Sources of Urinary Phenol and Indole Acids. Nature 182, 797–798 (1958). https://doi.org/10.1038/182797a0

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  • DOI: https://doi.org/10.1038/182797a0

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