Carnation Instant Breakfast
I bought the one with less sugar, it didn't work for me for some reason. I think the lactose sugar bothered my pouch too much?
I use a protein powder from Carb Solutions instead, it has 1 gram of sugar and 20 grams of protein. I tried the CIB for a different taste, but it didn't agree with me. I figured since so many other people were using it, I would try it.