The "you are guaranteed to lose your hunger" bs surrounding the sleeve is exactly that, bs. No surgery is guaranteed to make someone lose their hunger sensation. All the Ghrelin "research" isn't solid fact, we still don't understand hunger, how it happens, what *actually* triggers it, etc. Currently the information around Ghrelin is "we believe" not "we know". The sad truth is, the majority of WLS patients, no matter the surgery, will retain some level of hunger sensation or will regain that sensation within a year of surgery. It's rare that someone loses the sensation permanently. And some, never lose it at all. So if someone promised you that the sleeve would kill your hunger because it "removes" ghrelin production... well, they didn't tell you all the facts.