Zamora-Ros R., Urpi-Sarda M., Lamuela-Raventos R.M., Estruch R., Vazquez-Agell M., Serrano-Martinez M., Jaeger W., Andres-Lacueva C. (2006) Diagnostic performance of urinary resveratrol metabolites as a biomarker of moderate wine consumption. Clin Chem 52:1373-80 PubMed (16675507)

Compound Mean content
Resveratrol 0.11 mg/100 ml