If your going to have chocolate then switch to dark chocolate with a high cocoa content as research has found it can lower blood pressure, high in antioxidants that reduce the risk of strokes, cancer, heart attacks.~ Magazine Excerpt
An interesting thing to point out is upper-end dark chocolate has more tannins than cheaper brands so slightly counteracting the positive outcome of it benefits. So if you want the best nutrition balance of dark chocolate vs the taste and nutrition? Find the best brand you like and choose one two steps cheaper.