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.
A single three-cup serving of popcorn provides less than 100 calories, only one gram of fat, just over 18 grams of carbohydrate and 3.5 grams of dietary fiber. That means that each serving only provides 14.5 grams of net carbs. Much lower than the net carb count of many other crunchy snacks.