As part of a clinical trial, researchers examined the effects consuming a flavanol-rich (flavanols are a subcompound of flavonoids) cocoa beverage, aspirin or both had on platelet function, which is believed to be an important indicator of heart health. Participants who consumed the cocoa beverage showed positive effects, similar to that of those who took aspirin. Results showed a decrease in platelet reactivity two hours following the consumption of the cocoa beverage, and six hours after the aspirin. This desired effect was enhanced in the group who consumed both the cocoa beverage and aspirin. Until now, very little was known about the effects of flavanols in comparison to taking aspirin, which is associated with a decreased incidence of coronary heart disease. Doctors often prescribe baby aspirin to patients in order to decrease platelet function. Decreasing platelet function and activation allows blood to flow more freely through blood vessels, which is important in maintaining cardiovascular health.

The cocoa beverage used in this study was formulated to be high in flavanols, components naturally found in tea, wine, apples, certain cocoa and chocolates. While flavanols are inherent in cocoa beans, not all chocolate is created equal. Mars, Incorporated has developed proprietary, patented methods of processing cocoa beans so that flavanols are retained in their chocolate products.

While it is important to consume a variety of foods, including a range of fruits and vegetables, studies suggest that chocolate rich in flavanols can be included as part of a heart-healthy diet too. -Weber Shandwick Worldwide