Surprisingly on this clear liquid diet (exception of Protein Drinks) my 2 Premier Protein's a day are making me not hungry. I'm also getting way over 64 oz of liquids a day as well. I'm not even close to meeting enough calories but I am losing water weight and the scale is showing. As long as I am taking all of my vitamins and getting enough protein and water in I'm okay with the lower calories. It's going to be the same way after surgery. No matter how hard we try we're not really going to be able to come even close to our calories for the day at least in the beginning.
As long as I'm on track with my vitamin/nutrient levels, not dehydrated, and keeping my muscle mass, while exercising daily. I call it a win!!!