You have the munchies, and grab one of those 100-calorie snack packs you find on store shelves everywhere. But will all that packaging actually help you slim down? Researchers say the ingredients in the mini versions may be different than the originals. 10 of these snack pack cookies have less fat than one cookie, which means your snack may not satisfy you. "It may actually backfire by somebody consuming the 100 calorie pack and realizing they really weren't satisfied and then go and consume the Oreo and then end up with twice as many calories." Plus, the 100 calorie packs can be more expensive than other higher calorie snacks, so your best bet might just be fruit. However, if you like the convenience of the 100 calorie packs, Fig Newtons, Wheat Thins and Goldfish are your best bets the next time you have a snack attack.