hello i havent had my surgery yet i have to have 3 weigh ins where i have lost weight or maitaned weight.I do carnation instant Breakfast every day their sugar free.But today my mom told me to use Protein powder and powder milk plus skim milk is that to much or should i just use some powder milk and protein mix

Carnation instant is one of the approved options on my program. If you want variety you could try some of the Protein powders or Meal Replacement shakes.

I like the carnation instant made with milk, Premier Protein ready to drink, GNC Lean 25 made with Water, and Syntrax nectar made with water.

Just follow your surgeon's program. The pre-op diet varies surgeon to surgeon with the goal of shrinking your liver and preparing for surgery once you have completed any required pre-op weight loss requirements.

Best of luck, it sounds like you are doing great.