DEAR DOCTOR K: Many people I know are going gluten-free. When I ask them why, I hear about gluten sensitivity and celiac disease. What do these terms mean?
DEAR READER: Gluten sensitivity and celiac disease are two separate conditions with one thing in common: gluten. Gluten is a protein found in anything made with grains such as wheat, rye or barley. Gluten is what makes breads chewy. Celiac disease is a disorder in which the body can't tolerate gluten.