Some people with celiac disease react violently to trace amounts of gluten.
Recent research has shown there’s a sizable group of people with celiac disease who have persistent intestinal damage despite following a gluten-free diet. Roughly 20 percent of kids and 30 to 40 percent of adults have ongoing intestinal damage, whether or not they report symptoms. Of these, just 1 percent have true refractory celiac disease, a serious condition marked by immune cells that are always turned on, regardless of gluten exposure. The rest are so-called non-responders. Many of these are probably unknowingly exposed to gluten cross-contamination on a regular basis. Others, like Perry, may be extremely sensitive to trace gluten.