Cocoa Flavanols (IMAGE) CNC (UK) Ltd. Caption Naturally occurring cocoa flavanols are largely destroyed by most cocoa processing methods. The cocoa flavanol drink test materials used in these studies supplied by Mars, Incorporated were extracted using a patented process from fresh cocoa beans. Credit Mars, Incorporated Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.