I called Bragg, KAL, Lewis Labs, and LeSaffre (makers of Red Star)to find out if any of the products were grown on a nutrition base that was GMO free. Bragg said yes, KAL didn't have a phone contact that I could find so I emailed and did not get a response, Lewis Labs said yes, and LeSaffre said no. So I moved to Lewis Labs from Red Star, it is very different, more of a toasted nutty flavor. Very different and I like it there are foods where I think the cheesy flavor of Red Star works better. My body seems to like the Lewis Labs a little better.