While more studies are needed to compare the fat loss effects of high reps vs. low reps, substantial evidence is mounting that it’s not necessarily the amount of weight that is used, or the number of repetitions that helps burn the most fat, but the intensity of the workout. The goal is to create muscular failure with less rest between exercises, which can have powerful hormonal, metabolic, and calorie burn effects. In addition, for fat loss, proper nutrition will have a MUCH greater impact on fat loss than the specific rep range, or even workout.