According to him, it's the Gliadin in the Wheat Gluten that's causing all the problems.
http://www.wheatbellyblog.com/2012/0...liadin-effect/
So if Glidadin is still in "non-GMO" wheat, which I think it is, then it would still effect your body.
But, if I can remember correctly, GMO wheat has not been approved by the USDA. (like GMO corn has) So marketing a "GMO free" wheat might be sort of deceptive.
Just a couple of thoughts on the issue..