What to watch with Zöliakie Test and allergy?

When considering celiac tests and allergy tests, caution is warranted, especially with home test kits. For celiac disease, a reliable test (e.g., tTG-IgA) requires a gluten-containing diet; a gluten-free diet before testing can cause false negatives. Moreover, a positive home test is not diagnostic – an intestinal biopsy is the gold standard. For allergy tests: IgG-based tests measure food exposure, not true allergy, and are marketed as 'food intolerance tests' without clinical validation. They are particularly risky for children, as unnecessary dietary restrictions can lead to malnutrition. IgE tests (skin prick or blood) performed by a physician are the standard for immediate-type allergies. Do not confuse celiac disease (autoimmune) with wheat allergy (IgE-mediated) or non-celiac gluten sensitivity (no biomarker). Always consult a gastroenterologist or allergist before making dietary changes. Home tests lack strong evidence and should not replace medical evaluation.