Once back 1991 or so, I went to a guy on 235, last name started with a Ch.....anyway, I do believe it can work if your mind is open to it and you really are ready. I did it for smoking and quit that day for like 2 yrs, then went for weight loss and didnt eat for 4 days and then started slim fast and lost about 30 or so pds. so in answer to your question, yes, it can work and work well. If you are hesistant in your mind, it will not work. Good luck.