How much weight? And why rapidly? You probably know that losing weight quickly usually means you gain it back later because it means you have to do something fairly extreme rather than make lasting changes to your diet and how much you exercise. Slow weight loss stays off, quick usually doesn't. So tell us how you eat now, how much you exercise, how much you want to lose, and why it has to be fast, and someone might have some suggestions for you that would be useful rather than generalizations.