Is Pea Protein powder ok on SCD?

I see that on the Breaking The Vicious Cycle that 'Pea Flour" is forbidden yet Peas ARE allowed. Is "Pea Protein Powder" OK? I've purchased a jar of it from Dr.Joseph Mercola and according to the label it's entirely made from peas, no additives. Is this different from 'Pea Flour'? Why might peas be OK but not ground powdered peas? Any help or insight would be greatly appreciated!! Tweet