Celiac disease (CD) is an illness where eating gluten harms the small intestine. Gluten is a protein found in wheat, barley, and rye. When someone with CD eats gluten, their small intestine gets damaged, and their body makes special proteins called antibodies against it. Doctors use these antibodies to help diagnose CD.

For some people, it's not easy to tell if they have CD because their symptoms and test results aren't clear. This study wants to find a new way to test for a kind of antibody called intestinal CD-antibodies (I-CD-abs). These help identify early CD. The goal is to make the test simpler and faster so doctors can find and treat CD sooner.

Key Points:

• This study involves a quick test (about 15 minutes) for detecting CD.
• Participants must be undergoing certain medical exams for CD or other stomach issues.
• Those with certain conditions or guidelines for CD diagnosis may not join.