My favorite chocolate is actually good for you:
Investigators from the University of L'Aquila in Italy found that after eating only 100 grams, or 3.5 ounces, of dark chocolate every day for 15 days, 15 healthy people had lower blood pressures and were more sensitive to insulin, an important factor in metabolizing sugar.
UPDATE: If I'd known Kevin Drum was going to link to this post, I'd have put some more thought into it and maybe even a few actual insights. So it goes. Welcome, all you visitors from Political Animal!