Lay opinion vs evidence: Gluten Ernährung

Lay opinions about gluten are often driven by anecdotal reports and marketing rather than robust evidence. Scientifically, celiac disease (about 1 % prevalence) requires strict gluten avoidance. For non-celiac gluten sensitivity (NCGS), evidence is weak – most studies rely on self-reported symptoms, and placebo-controlled trials frequently find no specific effect of gluten. Genetic tests for celiac risk (e.g., HLA-DQ2/DQ8) indicate predisposition only, not disease. For the general population, a gluten-free diet offers no proven benefit and may lead to nutrient deficiencies (fiber, B vitamins). The provided knowledge context does not contain gluten-specific data, so this answer relies on general scientific consensus. Be cautious of exaggerated health claims from the food industry.