You can create this by cutting 1,750 calories from your diet and burning another 1,750 calories through exercise. if you weigh 185 lbs., you can burn 1,750 calories weekly with approximately five half-hour elliptical machine workouts or nine 15-minute workouts spaced throughout the week.. Pies and how to lose weight fast using elliptical ice cream; how to how to lose weight fast using elliptical