Why would you want to avoid chocolate? While dark chocolate (with at least 70 percent cocoa) is good for your heart, too much chocolate overcomes the good. And cravings in general are usually bad news for people trying to lose weight. Ninety-seven percent of women and 68 percent of men experience food cravings, and craved-for foods tend to be calorie-dense, fatty or sugary foods, with chocolate being the most commonly reported. Walking reduces cravings for nicotine and other drugs. More recent findings show that it can also curtail a hankering for chocolate, both during the walk and for about 10 minutes afterward. Says Professor Adrian Taylor of the University of Exeter, the scientist behind the study, the findings suggest that walking helps people lose weight by curbing cravings for sugary snacks.