https://healthchocoholic.com/2015/08/14/flavonoids-are-a-natural-blood-thinner-and-affect-platelets-which-can-cause-clots-that-lead-to-heart-attacks-says-cleveland-clinic-about-the-flavonoid-content-in-dark-chocolate/
"Flavonoids Are a Natural Blood Thinner and Affect Platelets Which Can Cause Clots That Lead to Heart Attacks.” Says Cleveland Clinic About The Flavonoid Content In Dark Chocolate