This is taken from Health magazine
Chocolate isn’t great for your waistline—two bites pack about 50 calories—but the dark kind may help you feel fuller, University of Copenhagen researchers say. They found that people who ate dark chocolate had fewer cravings afterward than those who ate milk chocolate.
The reason: Dark chocolate helps the body regulate appetite, its higher amount of cocoa butter (it has stearic acid, which can slow digestion) may make the stomach stay full longer.