Can anyone tell me how do we tell if a protein powder has predigested protein?

I am still pre-op and wanted to buy a few different kinds of protein powder, but how do we know if it has predigested protein in it? I bought to cans of Soy 25, it has 25g protein, 0sugar and 2g carbs, does anyone know about this product? Thanks, Amy

We greatly appreciate your interest in helping us build our Q&A database. To discourage vandals from posting garbage, however, we require people to register before posting.