Seitan is coagulated wheat peortin. I can see why this would confuse people used to using it, because while it *is* derived from wheat, it is pretty much pure gluten (protein) and wouldn't carry the same carb threat that other grain products would. It is not a super-processed food anyone could make it in their own kitchen by super-kneading dough until it is extremely rubbery and the starch and bran can be washed out. The texture is about like cheese curds, and it absorbs flavored readily.