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.
Popcorn does provide some nutrients other than fiber that are more easily absorbed in your digestive tract. You need 310 to 420 milligrams of magnesium, 700 milligrams of phosphorous and 400 micrograms of folate from your diet each day, says the Office of Dietary Supplements.