Eating dark chocolate has a good impact on your metabolism! Why? Dark chocolate is made of cocoa seeds which contain flavonols. Flavonols effectively push oxygen, witamins and minerals to your tissues and- as a result- positively stmulate circulation of your blood and speed up your metabolism. But remember: you can eat only 2 small squares of (at least!) 70% cocoa chocolate everyday. If you don't like dark chocolate, you can mix 1 tbls of cocoa with your yoghurt or cereals.