Is Zöliakie Test useful for Müdigkeit?

A celiac test can be useful for fatigue if accompanied by gastrointestinal symptoms (diarrhea, bloating), weight loss, or unexplained iron deficiency. Celiac disease is an autoimmune condition triggered by gluten that often causes chronic fatigue. However, fatigue is a highly nonspecific symptom—most cases stem from sleep deprivation, stress, thyroid disorders, or other deficiencies. Consumer DNA tests for celiac risk (HLA-DQ2/DQ8) only indicate genetic predisposition, not active disease. Diagnosis requires antibody testing (tTG-IgA) and duodenal biopsy. Without additional symptoms or medical evaluation, a celiac test is not a first-line investigation for fatigue. Evidence is based on clinical practice, not the provided context. Caveat: consult a physician for proper diagnosis; home tests are not diagnostic.