What do studies say about IgG Unverträglichkeit Kinder?

Scientific evidence for IgG food intolerance tests in children is weak. IgG antibodies to foods are often marketed as indicators of 'delayed' intolerance, but professional societies (e.g., DGAKI, EAACI) advise against using such tests to diagnose food intolerances. IgG levels merely reflect immune exposure – meaning the child has encountered the food – not a pathological reaction. In children with true allergies (IgE-mediated) or intolerances (e.g., lactose intolerance), IgG tests are unhelpful and can lead to unnecessary diets that risk growth and nutrient deficiencies. Studies show that IgG-based elimination diets provide no clinically relevant benefit for symptoms like abdominal pain, diarrhea, or behavioral issues. The only exception is IgG4 testing in certain eosinophilic disorders, which requires strict medical indication. For practice: if a food intolerance is suspected in a child, medical evaluation with validated methods (symptom diary, provocation, IgE testing if indicated) is essential. MyBody-X offers intolerance tests, but the evidence for IgG-based tests in children is best classified as 'marketing' – they are not a substitute for medical diagnosis.