A study published in the Journal of Strength and Conditioning Research looked at the calorie-burning effects of a 50-minute Body Pump workout. Subjects burned, on average, 265 calories during the workout. The men burned a little more calories (315) compared to the women (214).
Since popcorn is 100% whole grain, itâs also a good source of fiber, and as long as you air-pop it and donât douse it in butter, oil or salt, it wonât add much artery-clogging fat to your diet. But the findings arenât license to substitute popcorn in your diet for fruits and vegetables, says Vinson.
How to eat it: Try making your popcorn on the stove, itâs simple and fast! Instead of butter, sprinkle some parmesan and a little salt. Nutrition per 1 cup, air-popped: Calories: 31, Fat: 0.4 g, Cholesterol: 0 mg, Sodium: 1 mg, Carbohydrates: 6 g, Dietary fiber: 1 g, Sugars: 0.07 g, Protein: 1 g.