I have been on it, but gave up I think it was after day 4. My head was spinning and I was starving and my breathe was so embarrassing !!!! I have been tempted also the last few days to start it again and give it another try. But then if you eat well you should see the same results. I have known many people to do it and I would say more then 3/4 have put the weight back on. But if it works for you and you can keep it off then go for it.