Ever grab a snack but then feel hungry again 20 minutes later? Next time, reach for a banana. It’s loaded with Resistant Starch (RS), a healthy carb that fills you up and helps to boost your metabolism. Slightly underripe medium-sized bananas have 12.5 grams of RS—more than most other foods. Ripe bananas give you 4.7 grams of RS, still enough to keep hunger pangs away. Check out these tasty ways to work in this wonder food.