My surgeon has me one an almost all Protein diet from Physician's Weight Loss. Only about 450 calories. He wanted me to do it for 2 weeks, but 3 weeks if I could. I will have been on it 3 weeks by the date of my surgery. On Monday this week (my 14th day on the diet) he told me that I could eat lean Proteins as long as I did not overdue on calories. I love sushi grade tuna - very rare or raw, so I have had tuna 3 times (4 oz is the same as 2 of 5 daily drinks) and tonight I just had 3 egg whites scrambled. It was true emotional journey the first week of my liquid diet. I went to birthday party on the 5th day and thought I might tackle someone as they walked by with their hamburger and piece of birthday cake. I have had great support from my firends and co-workers. They have a planned, non-food activity almost everynight with one of them, and on Friday we are having a food free "hello to the new me" party - complete with pajamas, great movies and games. Over half of my 10 co-workers also went to all liquid diet (not alcohol - slimfast and such:p ) during work hours, so that has been great as well I have lost 22 pounds in 2.5 weeks. One of my biggest vices has been Dr. Pepper, so I have given up all caffeine and artifical sweetners to try to completely get past my addiction to caffeine including diet drinks.
I hope this help, and I know I probably told you way more than you wanted to know. Good luck and best wishes, Mouster:D