How did it come to this? There's nothing wrong with dark chocolate, let's just get that out of the way. I have frequently eaten and enjoyed dark chocolate. What I object to, in part, is the moving of goalposts on what constitutes dark chocolate. Ten years ago, if you purchased chocolate containing 60% cocoa mass, it came with warning labels and was invariably and offensively named after an African nation or river. ABANDON ALL HOPE,…