1. Rodriguez-Mateos A, Cifuentes-Gomez T, Gonzalez-Salvador I, Ottaviani JI, Schroeter H, Kelm M, Heiss C, Spencer JP: Influence of age on the absorption, metabolism, and excretion of cocoa flavanols in healthy subjects. Mol Nutr Food Res. 2015 Aug;59(8):1504-12. doi: 10.1002/mnfr.201500091. Epub 2015 Jun 12. [PubMed:25981347 ]
  2. Roura E, Andres-Lacueva C, Estruch R, Lourdes Mata Bilbao M, Izquierdo-Pulido M, Lamuela-Raventos RM: The effects of milk as a food matrix for polyphenols on the excretion profile of cocoa (-)-epicatechin metabolites in healthy human subjects. Br J Nutr. 2008 Oct;100(4):846-51. doi: 10.1017/S0007114508922534. Epub 2008 Feb 7. [PubMed:18257943 ]