Good news for your sweet tooth: Chocolate can help you flatten your belly. Dark chocolate, that is. But to truly take advantage, don’t wait until dessert: A recent study found that when men ate 3.5 ounces of chocolate two hours before a meal, those who had dark chocolate took in 17 percent fewer calories than those that ate milk chocolate. The researchers believe that this is because dark chocolate contains pure cocoa butter, a source of digestion-slowing stearic acid. Milk chocolate’s cocoa butter content, on the other hand, is tempered with added butter fat and, as a result, passes more quickly through your GI tract. Because dark chocolate takes more time to process, it staves off hunger and helps you lose weight.