A recent study has found that chocolate(巧克力) may be good for your heart. This is a fantastic (11 )for all chocolate lovers. The study was conducted over eight years. It (12 )20,000 chocolate-eating people, and compared the amount of chocolate in their diet( 13) the incidence of heart attack. Lead researcher Brian Smith said: The good news is that chocolate is not as bad as we (14 )to think, and may even lower the risk of heart disease. " Experts believe that natural compounds in chocolate called flavonols are good for our heart. They are found in cocoa beans(可可豆). (15) dark chocolate has more cocoa than milk chocolate which has more fat, it contains more flavonols. "So,dark chocolate is the (16 )kind to eat, "said Smith. The study showed (17) people who ate the most chocolate (18) their risk of having a heart attack by 27 percent. (19) Smith warns people not to suddenly eat lots of chocolate." Eating higher amounts will most likely (20) weight gain. If people start eating small amounts of chocolate, it should replace something else, preferably other high-calorie sweets, "he said.