My surgeon requires 2 weeks of Protein Shakes as Meal Replacements and getting in 64 oz. of Water each day (can supplement with calorie-free, sugar-free, non-carbonated drinks). Yes, the Protein shakes can be pre-mixed. They gave me a list of approved shakes. They are: Unjury, Oh Yeah!, Premiere Protein, Pure Protein, Chime, EAS 100% whey isolate, Isopure and nectar. They also say I can get my own shakes or Protein Powder, as long as they meet these requirements: whey protein as 1st ingredient, They told me everything has to be the consistency of milk or thinner. No chunks or pieces of anything. Soups are ok but must be pureed or strained. Also these guidelines:
I would recommend you follow your doctor's orders. I had RNY gastric bypass whereas you had the mini gastric bypass. After surgery my stomach was in a major heal mode for the first couple months. Even after a couple months I found it very difficult to consume hard foods such as steak and chicken. So since you had surgery 9 days ago, I really recommend you give your stomach a little time to heal properly.