I have been using Alli since it hit the market. It is no miracle pill, but I stay on a diet and eat low fat foods, but I'm also in my 50's and it is easy to put on a few pounds. Alli just helps me stay on track and if I go out and eat something a little heavier than usual, I take an Alli and at least feel like I offset those extra fat calories a little. A couple of years ago when I was trying to loose weight, I got to a plateau and couldn't seem to do anything to drop more weight, when I started using the Alli, it moved me off that plateau and helped me loose a few more pounds. Now I just try to maintain.