While not a supplement per se, still warrants a review.
I have been incorporating high cacao content chocolate into my diet to see how much I can treat myself to without deleterious effects.
The 85% Cacao content bar is a bit of a shock at first, very bitter with the sweetness and creaminess overloaded. However, after the first initial shock, I think I prefer this over the lower content bars.
The chocolate is excellent, and melts in your mouth. The cacao is very noticeable, but once you get over your programming to like crap like Nestle Milk Chocolate, I find this to be a far superior taste.
Much healthier alternative to Milk Chocolate, IMO.