Li C., Lee M.J., Sheng S., Meng X., Prabhu S., Winnik B., Huang B., Chung J.Y., Yan S., Ho C.T., Yang C.S. (2000) Structural identification of two metabolites of catechins and their kinetics in human urine and blood after tea ingestion. Chem Res Toxicol 13:177-84 PubMed (10725114)

Urine analysed after enzymatic deconjugation

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Cumulative Excretion in Urine (µmol)
Number Dose Multiple Dose Duration Time (days) Polyphenol Source
Name as described in publication
0 0.5 2 4.5 7.5 10.5
1 1.2 g Single Dose 0 100 275 315 325 325
green tea powder in hot water