What role does Zöliakie Test play in Abnehmen?

The celiac test (antibodies against tissue transglutaminase, endomysium, deamidated gliadin peptides, and HLA-DQ2/DQ8 genotyping) is primarily used to diagnose celiac disease, an autoimmune condition that can cause weight loss due to malabsorption in untreated patients. A positive test justifies a strict gluten-free diet, which is mandatory for celiac disease. However, the test is not a weight-loss tool for healthy individuals. Evidence that a gluten-free diet promotes weight loss in non-celiac individuals is weak and inconsistent; many gluten-free products are calorie-dense and low in nutrients. Unnecessary gluten avoidance can lead to nutritional deficiencies and social burden. Therefore, the celiac test is recommended only when celiac disease is clinically suspected (e.g., diarrhea, bloating, fatigue, unintentional weight loss), not as a general weight-loss strategy. The German Society for Gastroenterology (DGVS) advises against screening without symptoms. Caveat: A negative test does not rule out non-celiac gluten sensitivity, which may also be linked to weight issues. Overall, the role of the celiac test in weight loss is very limited and should not be misinterpreted as a dieting tool.