Contrary to popular opinion (and that little voice you hear in the Cheetos aisle), packaged snacks and side dishes aren’t cheaper than fresh fruits and vegetables. According to the Center for Science in the Public Interest, the average price of unhealthy snacks is $0.67 per serving, compared with $0.34 for fresh fruit. For instance, a pack of M&M’s costs $0.75 and adds up to 230 calories. Half a cup of grapes will run you $0.46 at just 50 calories. “The notion that packaged snacks are cheaper is an urban myth that deserves to be put out to pasture once and for all,” says the CSPI’s Margo Wootan, D.Sc.