I have a bit of a problem with people saying what works and doesn't work. Not to be antagonistic so I will explain.
I believe that a weight loss program works if you can stick with it long term, if it can be a long term part of your life and if it's healthy. Going on a liquid diet, losing 50 pounds in 2 hours is not something that I think works.
A lot of the DIETs talked about here are fads, and I believe that most are unrealistic. Besides, if there were a magic pill or formula, it would be HUGE news, it wouldn't be advertised on the back of a rag mag!
Just my 2 cents...