It's part of hollistic medicine. I don't think there're any side effects except empty pockets...So it might worth a try. Being a believer of more traditional medicine, I would not believe in hypnotherapy nor in diet pills. Did you guys know that diet pills are never FDA approved so they have no scientific proof of being effective?
Anyways, you might try if you can spare few hundred bucks on it...never hurt...maybe it'll work for you.
Yuliya