Publications for the metabolite 3-methylxanthine with food phytochemical Cocoa purines

1. Martínez-López S, Sarriá B, Gómez-Juaristi M, Goya L, Mateos R, Bravo-Clemente L: Theobromine, caffeine, and theophylline metabolites in human plasma and urine after consumption of soluble cocoa products with different methylxanthine contents Food Research International. 2014 March 14;63:446-455.