My pre-op dieat is confusing me!! My surgery is on 3/21 which means I am supposed to be on Day 4 of my 2 week pre-op. Thing is, I cheated horribly the first 3 days and I am ready to get back on track because I DON'T want to get re-scheduled, gain weight and I realize how serious this diet is to the being compliant after I am sleeved. The only thing is, I don't know how many carbs, sugars or grams of fat ar too much. The diet they gave me was confusing meal replacement shakes and bars, which I brought the minimal amount. I thought about just doing a straight up liquid diet,fat free, sugar free, no carbs. All of the protein shakes I have purchased have carbs and fat. What is the max I can do in carbs and fats and still be able to lose weight or at least maintain (and have liver shrinkage) ?