What is the difference between soy powder, soy protein isolate, soy flour, protein powder, and whey protein?
Soy (also called soya) powder (or soy protein isolate) and soy flour are both made from the same source: the soy bean. The physical difference between the two is that soy powder is ground finer than soy flour. You can use both when doing Atkins. However, soy flour has more carbs, so you need to keep this in mind when counting your carb intake. For best results, especially during Induction, use Atkins Bake Mix, which has a very low carb count.