I like the Isopure Zero Carb 100% Pure Whey Isolate Protein Powder, Lactose Free, Gluten Free, With Vitamins, Unflavored. It can be mixed with sugar free drink mix or other drinks or mashed food. I do recommend a mixing bottle though to mix it up well.
Have you tried the unflavored powder you mix into things. I will have my surgery in a week and have allergies already the powder is easer for me to mix into things even the water if I can not stomach the flavored shakes. I like the Isopure Zero Carb 100% Pure Whey Isolate Protein Powder, Lactose Free, Gluten Free, With Vitamins, Unflavored.