Urpi-Sarda M., Zamora-Ros R., Lamuela-Raventos R., Cherubini A., Jauregui O., de la Torre R., Covas M.I., Estruch R., Jaeger W., Andres-Lacueva C. (2007) HPLC-tandem mass spectrometric method to characterize resveratrol metabolism in humans. Clin Chem 53:292-9 PubMed (17170057)

Compound Mean content
Resveratrol 2.16 mg/100 ml