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
Ellagic acid Generic food 8 oz Single dose 16 0.65 0.06 1.14 0.14 SEERAM 2008
Urolithin A Food administered
Generic food
1 L/day 5 days 6 0.01 g after 6 days CERDA 2004
Urolithin B Food administered
Generic food
1 L/day 5 days 6 0.02 g after 6 days CERDA 2004
Urolithin B 3-O-glucuronide Food administered
Generic food
1 L/day 5 days 6 0.59 g after 6 days Graph CERDA 2004
Urolithin C Food administered
Generic food
1 L/day 5 days 6 Detected (unquantified) Graph CERDA 2004