Well, the Wii fit won't work if you don't eat healthy and watch your portions. Eat several small healthy snacks throughout the day (3). It will speed up your metabolism. My sister just got the Wii fit and has already lost 5lbs. and my sister is LAZY . . sorry, but it's true. So, it is the only real exercise she is getting and it is working for her. She loves it. I plan on getting one.