Brigham and Women’s Hospital in Boston is currently conducting a study to assess the health benefits of flavanols found in cocoa as it relates to heart attack and stroke prevention. Brigham and Women’s Hospital created a pill that extracts the cocoa flavanols and is examining the benefits in its 18,000 male and female volunteers. the maker of M&Ms and Snickers, patented a way to extract the flavanols from cocoa and is co-sponsoring this study.