I have no disease like that (that I know of...LOL), but I try to avoid GMO products as much as I can...very hard! With difficulty, I find the nonGMO cereals and sometimes they are gluten-free. Erewhon Supergrains Buckwheat & Hemp I buy when I am lucky, the health foods store is always running out. Bread is even harder. I like things made with ancient grains when I can find them. I order fiber bars from an internet site...they're marked nonGMO, but it doesn't say gluten-free or ancient grains.
