There have been studies in recent years linking chocolate to a healthy heart. Cocoa contains chemicals called flavanols, which fight heart disease by lowering blood pressure and cholesterol levels. But you'll have to consume dark chocolate with a high proportion of cocoa if you want to see the benefits, or just eat more fruits and vegetables, which contain flavanols as well and in higher amounts. "If you want to reduce your heart disease risk, there are much better places to start than at the bottom of a box of chocolates says Victoria Taylor from the British Heart Foundation