Snacks are meant to satiate your hunger between meals or to give you a boost of energy before or after a workout. If you wait too long to enjoy your snack, you'll be so famished that you either grab the quickest (and most likely unhealthy) food you see, or you eat so fast that you reach for more food after your snack is gone. Avoid this problem by scheduling regular snack times (yep, just like a preschooler). Try these low-cal snack recipes.