Discovery Channel :: News - Health :: Chocolate's Benefits Depend on its Color
Sparky really likes dark chocolate, and I say good for her, it appears to contain a lot of good stuff. I'm a milk chocolate guy myself, which while not bad for the "good" chemicals, isn't nearly as good as the dark. Woe be unto you who like the instant cocoa though:
Homemade hot chocolate made with chocolate syrup was next best, while the dry mixes provides few beneficial compounds, likely because they contain more fillers.