Honestly, the two week liquid diet was extremely difficult for me. I had the protein shakes and chicken broth. The chicken broth was like having steak to a starving stomach. The first 4 days were the hardest, but then you hit a groove and it really does get easier. The protein shakes will help curve your appetite, if you use like 1% milk. I also drank zero calorie poweraid for variety. Ate sugar free jello and chewed it to make me feel like I was eating. I looked at as my part in the deal, cheating was not an option, I told myself if I cheated, they wouldn't do the surgery. I think how much you lose depends on how big you are in the first place. I started my liquid diet at 297 and I lost 23lbs. I just had my surgery on the 23rd and I am down to 265. I never thought I would drop this quickly. It keeps me going though, cause the liquid diet doesn't stop after surgery. As a matter of fact, my dr. requires another 4 weeks! It's all about allowing yourself to heal, cause you do not want leaks! They are bad news. At least now on my liquid diet I can have some soup like cream of mushroom, etc. Getting all the protein after surgery is a challenge, I am relying on Isopure a lot, so tired of the shakes. Anyway, you can do it. I never thought I could as I have never been successful at a diet, so if I can, anyone can.