What do studies say about Gluten Labor?

The term 'Gluten Labor' is ambiguous. It likely refers to laboratory tests for gluten-related disorders. For celiac disease, specific antibody tests (tTG-IgA, EMA) and duodenal biopsy are well-established. For non-celiac gluten sensitivity (NCGS), no validated biomarker exists; diagnosis relies on exclusion and challenge. Direct-to-consumer IgG gluten tests lack clinical evidence and are not recommended by guidelines. Evidence is weak (marketing/unclear). A positive IgG result may reflect normal immune exposure, not disease. Over-reliance on such tests can lead to unnecessary dietary restrictions and nutritional deficiencies. Always consult a healthcare professional before eliminating gluten.