Causes of Celiac Disease Celiac disease is an autoimmune disease. In this condition a person is allergic to a protein called gluten. Your immune system recognizes gliaden, a protein which makes up gluten, as an intruder. It releases antibodies against gliaden to protect the body whereas in actual, this mistake of immune system damages the digestive system instead of protection. Gluten is found in rye, wheat, barley, pasta, cereals, bread, beer and biscuits. Symptoms of Celiac Disease are - Diarrhea - Flatulence - Bloating - Diffused stomach ache - Nausea - Vomiting - Indigestion - Weight loss - Edema - Fatigue and exhaustion - Dermatitis herpitiformis - Headaches - Malabsorption of nutrients Diagnosis of Celiac Disease - Blood tests to check antibodies - Intestinal biopsy - Endoscopy Treatment of Celiac Disease - Gluten-free diet