Raspberries: 1 cup=64 calories. Raspberries are the berry with the highest fiber count, one cup has more than the amount in four slices of whole grain bread. So grab a handful and snack away. Since these berries are only about one calorie a piece, it is a guiltless snack to enjoy.
Grapefruit: Medium Size=82 calories. Low in sugar, high in fiber. Research shows they improve insulin resistance, meaning you feel full longer, as said by David Grotto, RD, author of 101 Optimal Life Foods. Also a study done by the Journal of Medicinal Food showed that obese adults who ate a 1/2 grapefruit prior to each meal lost 3 more pounds over the course of 12 weeks than those that skipped a grapefruit appetizer.
Apples: Medium Size=95 calories. An apple a day helps keep the fat at bay. A medium apple has 4 grams of fiber, most of it in the skin, so resist the urge to peel that apple!
Bananas: Medium Size=105 calories. Bananas catch a bad wrap for being fattening, but in fact studies show that they contain "resistant starch" which is a type of fiber that helps your body digest slowly, keeping blood sugar stable and leaves you feeling full longer.