Arthritis. >> fox files sen sat down with e doctor at the forefront of celiac research at the university of maryland. >> their studies show that 1% of the population or one in 133 people in the united states have the disease, yet only a small fraction know they have it. >>on we don't know what makes people sick with diabetes or ms, but undisputably, we have to treat them auto immune process. >> what is gluten. that's all we hear about these days. >> gluten is the most abundant protein in specific grains like wheat, rye, and barley. we're not able to completely digest this protein, and that's w...