Healthy snacks can satisfy your hunger and keep you from eating extra helpings at your next meal, which can lower total daily calories. Snacks also can supply afternoon energy and extra nutrients. If you're trying to lose weight, try these 100-calorie snacks. 1 cup sliced bananas and fresh raspberries. 2 cups of carrots. 3 1/2 cups air-popped popcorn. 5 Melba toast crackers or rye or pumpernickel crackers. 2 tablespoons of peanuts. 2 domino-sized slices of low-fat Colby or cheddar cheese. 1 fat-free chocolate pudding cup.