This thread is kinda old, but I thought I'd add my two cents: I've made it, and I liked it. I like it better than any breads made from flax. I like it better than the Wheat Belly Basic Bread because that recipe is so calorically dense, I can't eat much more than a slice by itself before I'm full. Forget trying to make a two slice sandwich with fillings - I just can't eat that many calories in one sitting.

I have had blood glucose issues with whey protein as well - but only when it's whey protein by itself. If I add a raw egg to a whey protein shake, or eat a hard boiled egg with a Quest Bar, or buy a protein powder that also has casein, I don't get the subsequent blood sugar crash. I had no difficulties with the Soul Bread recipe in this regard.