20 Snacks That Burn Fat

15 Luna protein bar
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When choosing an energy bar as a snack, the rules are the same: Look for bars with 200 calories or less, 10 grams of protein and close to 5 grams of fiber. The Luna Protein bar certainly comes close (190 calories, 12 g protein, 3 g fiber), and tastes “almost like candy,” Health.com testers said.