According to researchers you can enjoy those chocolate bunnies this Easter. From this article Eat Chocolate for Your Health?:
Chocolate and cocoa powders are derived from beans that contain significant amounts of natural antioxidants (cancer-fighting agents) called flavonoids. According to the USDA, a mere 2 tablespoons of natural cocoa contain more antioxidants than 4 cups of green tea, 1 cup of blueberries, or 1 and 1/2 glasses of red wine. This is why research indicates that eating chocolate, particularly natural cocoa, could help
Also dark chocolate lowers blood pressure. Enjoy your Easter chocolate keeping in mind that too much of a good thing is not a good thing.