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
3,4-Dihydroxyphenylacetic acid Generic food 80 g Single dose 11 Graph RIOS 2003
3-Hydroxybenzoic acid Generic food 80 g Single dose 11 Graph RIOS 2003
3-Hydroxyphenylacetic acid Generic food 80 g Single dose 11 Graph RIOS 2003
3-Hydroxyphenylpropionic acid Generic food 80 g Single dose 11 Graph RIOS 2003
4-Hydroxybenzoic acid Generic food 80 g Single dose 11 Graph RIOS 2003
4-Hydroxyhippuric acid Generic food 80 g Single dose 11 Graph RIOS 2003
Dihydrocaffeic acid Generic food 80 g Single dose 11 Graph RIOS 2003
Ferulic acid Generic food 80 g Single dose 11 Graph RIOS 2003
Hippuric acid Generic food 80 g Single dose 11 Graph RIOS 2003
Phenylacetic acid Generic food 80 g Single dose 11 Graph RIOS 2003
Vanillic acid Generic food 80 g Single dose 11 Graph RIOS 2003