Is wheat gluten (wheat protein) an acceptible cooking substitute for soy protein powder or rice protein powder?
Vital wheat gluten will not dissolve as those two isolates will. Vital what gluten would likelier clot. Here its a description of the difference between soy flour and soy protein isolate; although VWG is basically a protein isolate (it is the leftover from washing away the starch in wheat), like those powders, the other two are gluten free. However, like with any flour, you can use it as a slurry to avoid this problem