In the end, the only thing that works and allows us to keep the weight off is effective exercise in combination with a sensible food plan = increased activity + decreased calories. For years, I walked miles and tried so many diets that I lost count--lost and regained the same 10 lbs. Frustrating. Finally, I hired an exercise therapist and a nutritionist and they came up with a program that has worked wonders. Turned the walking into interval training, which is getting the heart rate up to 145 for 45 minutes on a treadmill (programmed), at least every other day. Combined this with 20 to 30 minutes of progressive resistance weights training (the machines), also no more than every other day, if that. Better to do it about 3 times weekly to give your body time to rest. And I eat half-portions of food, whether at home or in restaurants. On the days I don't exercise, no food that is white and no wine. Over a period of about 18 months, I lost 30 lbs. Better yet, I lost three full sizes in my clothing. Have not regained the weight, but I have to place a priority on the exercise and watch how I eat, especially when travelling. Believe me, it has been worth it. I feel stronger and healthier than I have in over 20 years, plus I feel better because of looking better. Good luck, but think of this as a long-term solution rather than a run at a prom dress.