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.
Good sources of fiber are whole grain breads and cereals, beans, fruits and vegetables. The recommended fiber intake for adults is 25 grams per day for women, and 38 grams for men, up to age 50. Women over 50 should have 21 grams per day, while men over 50 should have 30 grams, according to the Institute of Medicine.