How are Kefir Darm and Allergie related?

The provided context does not contain direct evidence linking kefir (gut health) to allergies. Kefir is commonly marketed as a probiotic food that may support gut microbiota and thereby modulate immune responses, potentially affecting allergic conditions. However, the scientific evidence for a direct effect of kefir on allergies is weak, mostly based on mechanistic reasoning or small observational studies. No robust clinical trials confirm that kefir consumption prevents or treats allergies. Additionally, combination tests (IgE+IgG) for allergy and intolerance can be misleading, as IgG testing for food intolerance lacks validation. Consumers should be cautious of claims that kefir directly alleviates allergies. Evidence level: unclear.