Im a little confused as to how I should approach my cutting diet cardio workouts.... I do Am cardio on an empty stomach, and lift after work, Im just unsure about what I should keep my HR at to get maximum results for fat-loss. I take 1 serving of MRI'S Black powder before I do cardio for 45 mins, if that helps. The treadmills say for fatloss I should maintain a HR of 129??? Ive been doin this, and it just feels like its doing nothing..and im barely even sweating. is this correct?>? your thoughts and opinions please!!!!!!!!