Celiac disease is an autoimmune disorder in which individuals cannot tolerate gluten—a protein found in wheat, rye, and barley—because it damages the inner lining of their small intestine. This damage prevents the intestine from absorbing essential nutrients, which can lead to various health problems. The small intestine is the tube-shaped organ that lies between the stomach and the large intestine. Gluten can also be found in unexpected products like vitamin supplements, lip balms, and some medications, making it essential for those with celiac disease to be mindful of their product choices.
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