Sims, I'm so glad you said that. I'm having the same problem. My surgery was May 6 and I've only lost 10 pounds post surgery. I lost more weight on the pre surgery liquid diet. I don't understand either. I'm exercising almost every night (walking, riding bike, exercise videos) and eating protein bars and salads every day. I'm not feeling full and it's taking a good 2 cups to get full. My doctor does not seem concerned, but I am.