5 Energy-Boosting Snacks to Keep You Going All Afternoon

Eat this because: Midday snacks should contain about 100 calories or 15 grams of carbohydrates. The natural sweetness in fruit takes longer to metabolize than the processed sugars you'll find in candy. And the protein in peanut butter provides a long-lasting form of energy.

Eat this because: Complex carbohydrates such as whole grains and beans are some of the best energy boosters out there, and can fill you up without making you sluggish. Hummus, a spread made from garbanzo beans, contributes fiber and a little olive oil, both of which help satiate hunger pangs.

Eat this because: Thanks to their mix of good fat and protein, nuts are a slow-burning food that provide sustained energy. Dried fruit provides a touch of sweetness, but with the added benefits of fiber. Just a small handful is best, though: Too many carbs can cause low blood sugar, resulting in mid-afternoon sleepiness.

Eat this because: Granola's mix of grains, nuts, and dried fruit is the perfect crunchy compliment to creamy, protein-packed yogurt. If you like your yogurt a little sweeter, stir in a dab of honey and sliced fresh berries.

Eat this because: Pre-packaged cereal bars aren't just for breakfast, and they're the perfect snack at work or on-the-go. Choose bars with at least 5 grams of fiber and protein, but with less than 15 grams of sugar. Watch out for meal-replacement bars that are overloaded with calories—though you can always cut them into halves or quarters to create 100-calorie portions.