My preop was fat and carb restricted but not sugar restricted. I found that I could take a Slimfast low carb vanilla shake and add about 2 tablespoons of strawberry flavoring ( I used Hershey Strawberry milk flavoring) and it acutally tasted like a real strawberry shake. I put the shake in the freezer for about an hour before I blended it with 1/4 cup skim milk and the strawberry flavor.

Good luck!