Urine Plasma  
Polyphenol metabolite Composition of the [polyphenol] source Doses
administered
Dose
duration
Total no. subjects Mean urinary excretion (%) Kinetic data Tmax (hours) Mean Cmax (µmol/L) Half life (hours) AUC (µmol/L·h) Kinetic data Reference
human studies
4-O-Methylgallic acid Food administered
5 mL/kg bw Single dose 12 Trace amount CACCETTA 2000
Caffeic acid Food administered
5 mL/kg bw Single dose 12 Graph a9d716975d07e4a7e41abb50e7f45e82a5a61800f83ed43664b0781ff2caee59 CACCETTA 2000
Protocatechuic acid Food administered
5 mL/kg bw Single dose 12 Graph a9d716975d07e4a7e41abb50e7f45e82a5a61800f83ed43664b0781ff2caee59 CACCETTA 2000