Zöliakie Test: which diet helps?

A celiac disease test (blood test for tTG-IgA, EMA, and duodenal biopsy) confirms the diagnosis. The only effective treatment is a strict lifelong gluten-free diet. This means avoiding wheat, rye, barley, and all products made from them. Naturally gluten-free foods like rice, corn, potatoes, quinoa, buckwheat, and certified gluten-free products are allowed. Crucially, the gluten-free diet must not be started before diagnostic testing is complete, as it can lead to false-negative results. Even trace amounts of gluten can damage the intestinal lining in celiac disease. Nutritional counseling is recommended to prevent deficiencies (iron, B12, folate, calcium). Evidence: strong, based on guidelines (ESPGHAN, ACG). Caveat: Do not self-treat before diagnosis; consult a gastroenterologist for unclear cases.