Myths vs facts: Zöliakie Test and weight loss

Celiac disease tests (serology for tTG-IgA, EMA, and HLA genotyping) are reliable for diagnosing active celiac disease, but they are not a weight-loss tool. Fact: In untreated celiac disease, a gluten-free diet can normalize weight if malabsorption is present. Myth: A positive genetic test (HLA-DQ2/DQ8) alone does not confirm celiac disease – about 30% of the population carry risk genes, but only 1% develop the disease. Myth: A gluten-free diet is not inherently a weight-loss diet; many gluten-free products are calorie-dense and high in fat. Evidence for celiac diagnostics is human-strong (guidelines), but the claim that a celiac test aids weight loss is marketing-driven and unsupported by studies. Caveat: Testing is warranted if symptoms like diarrhea, weight loss, or fatigue are present, not as a lifestyle intervention.