Zöliakie Test: what are common causes?

The provided context does not contain specific information about common causes of celiac disease. Generally, celiac disease is an autoimmune reaction to gluten in genetically susceptible individuals (HLA-DQ2/DQ8). Environmental triggers such as early gluten introduction, gastrointestinal infections, and microbiome alterations are discussed but not definitively established. A consumer DNA test like MyBody-X may indicate genetic risk variants, but diagnosis requires serology (tTG-IgA) and duodenal biopsy. Evidence for genetic markers is moderate; most carriers never develop the disease. Without further context, the test's utility for identifying causes is limited. Medical evaluation is essential for suspected celiac disease.