In this Thursday, July 14, 2012 photo, Michele Kelly, owner of Pure Knead bakery, poses with a rack of freshly baked gluten-free sandwich bread in Decatur, Ga. A research team led by the Mayo Clinic's... more 
In this Thursday, July 14, 2012 photo, Michele Kelly, owner of Pure Knead bakery, poses with a rack of freshly baked gluten-free sandwich bread in Decatur, Ga. A research team led by the Mayo Clinic's Dr. Joseph Murray looked at blood samples taken from Americans in the 1950s and compared them to samples taken from people today, and determined Celiac disease, triggered by gluten, has been increasing, confirming estimates that about 1 percent of U.S. adults have it today, Murray and his colleagues reported Tuesday, July 31, 2012. (AP Photo/John Bazemore) less 
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Associated Press | Photo By John Bazemore
Tue, Jul 31, 2012 1:10 PM EDT