Common mistakes around Gluten Alltag

Common mistakes around gluten in daily life: Many people rely on DNA tests (e.g., HLA-DQ) to diagnose gluten sensitivity. However, these tests only indicate celiac disease risk, not non-celiac gluten sensitivity (NCGS). The evidence is unclear (source: PMC36933390). Another widespread error is using IgG food panels to detect gluten intolerance. IgG antibodies reflect normal immune exposure, not disease. Neither celiac disease nor NCGS can be diagnosed with IgG tests. Clinical evaluation with IgE tests (if wheat allergy is suspected) and a controlled elimination diet is recommended. Confusing gluten sensitivity with lactose intolerance is also common – lactose intolerance is an enzyme deficiency, not an immune reaction. Additionally, many people unnecessarily avoid gluten without medical supervision, risking nutrient deficiencies (fiber, B vitamins). The evidence for most commercial gluten tests is weak; a proper diagnosis requires clinical expertise and, if indicated, a duodenal biopsy. Safety note: If celiac disease is suspected, diagnostic testing should be completed before starting a gluten-free diet, as the diet can skew results.