Okay, to dumb this down for me, I ask my doctor to test for celiac disease? And ask him to be sure to include the antigliadin IgA and IgC? Do I need to specify any other specific tests? Thank you all for this info. I have a suspicion that gluten may be a problem for me. I lost about 50 pounds several years ago (gained it back). When I dieted, I cut out all bread refined grains and ate brown rice for a starch. My PN really improved. I am not sure if it was the weight loss, or the fact that my diet pretty much eliminated gluten. I thought is was the wieght loss, but now I wonder. Regardless, I need to loose the weight again.