KombiCheck | Unverträglichkeits- & Allergietest: what does this mean exactly?

The KombiCheck | Intolerance & Allergy Test is a commercial product that claims to simultaneously detect food intolerances and allergies. The term 'KombiCheck' suggests a combination of multiple parameters, often IgG antibodies or other non-standardized markers. From a scientific perspective, the evidence for such tests is very weak: IgG determinations are not considered reliable for diagnosing intolerances, and true allergies (IgE-mediated) are often not correctly captured. Therefore, test results can be misleading and may lead to unnecessary diets or anxiety. This test does not replace medical diagnostics (e.g., provocation tests, specific IgE testing). The evidence is rated as marketing-based or unclear.