Effect of diet on urinary excretion of VMA, HVA, metanephrine, and total free catecholamine in normal preschool children.


Quantitation of the urinary metabolites of catecholamines, including VMA, HVA, and metanephrines, from six normal preschool children was performed during a normal diet, a restricted diet, and a diet with increased amounts of vanilla, vanillin, and phenolic acids. Ingestion of these substances has been suspected of producing elevated values of urinary… (More)


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