Product Review: Dark Chocolate, Cocoa Powder, Nibs, Extracts & Supplements -- Sources of Flavanols

https://www.consumerlab.com/reviews/Cocoa_Powders_and_Chocolates_Sources_of_Flavanols/cocoa-flavanols/

http://www.nutraceuticalsworld.com/contents/view_breaking-news/2017-07-19/consumerlab-finds-cadmium-contamination-in-dark-chocolate-and-cocoa-powders