What organ is most affected by celiac disease?
It affects the small intestine – the part of the digestive system responsible for absorbing nutrients. If you have coeliac disease, eating gluten – a protein found in wheat, rye, barley, and oats – causes damage to the lining of your small intestine. It also causes inflammation in other parts of your body.
- Bloating: This is the primary symptom, described as a feeling of being full or swollen in the stomach, even after eating small portions.
- Abdominal Distension: The abdomen may visibly swell or appear larger than usual.
- Gastrointestinal Issues: In addition to bloating, other common symptoms include gas, pain, nausea, and diarrhea.




