Celiac disease is a digestive and immune disorder where the body overreacts to gluten, a protein found in wheat, barley and rye. Eating gluten causes the immune system to attack and damage the small intestine, preventing it from absorbing nutrients and leading to abdominal pain, bloating, diarrhea and weight loss.
Celiac disease is common in children and adults, affecting around one in 100 people worldwide. The condition prevents your body from getting the nutrients, vitamins and minerals needed to thrive, and can affect other parts of your body, leading to long-term health problems.
Celiac disease is often confused with a wheat allergy or gluten sensitivity. However, unlike an allergy or food intolerance, celiac disease damages the digestive system. You cannot prevent or cure celiac disease, but most people can control their symptoms by following a strict gluten-free diet.