Showing pharmacokinetics for Quercetin metabolite after consumption of Quercetin in humans Metabolism

Meng X., Maliakal P., Lu H., Lee M.J., Yang C.S. (2004) Urinary and plasma levels of resveratrol and quercetin in humans, mice, and rats after ingestion of pure compounds and grape juice. J Agric Food Chem 52:935-42 PubMed (14969553)

Urine analysed after enzymatic deconjugation

Cumulative Excretion in Urine (mg)
Number Dose Multiple Dose Duration Time (hours) Polyphenol Source
Name as described in publication
0 3 6 9 12 24
1 0.5 mg/kg bw Single Dose 0 1.25 2 2.4 2.7 3
quercetin
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