Topic: RE: Pre Op Liquid Diet Ok so I have been so paranoid, about these drinks. I called the clinic and talked to a fellow. So , he said since I have already lost over 30 pounds...I dont need to stress. I can just use the slim fast ultima, and/or carnation. Just stay uner the 800 calorie mark. But he said I could also do SF jello and popcicle...so I am ok there. :) I just wanted to make sure I was doing the right thing. Plus, I told him how much my exercise has increased....still doing 2 mile walks, but now up to four days a week from two, and now weight training with my trainer, and swimming. So I think I will be ok. Thanks for everyones help.