What do studies say about IgG Unverträglichkeit Senioren?

Scientific evidence for IgG-based food intolerance tests in seniors is weak and controversial. IgG antibodies to foods often reflect normal immune exposure rather than intolerance. In older adults, age-related immune changes (immunosenescence) can elevate IgG levels without causing symptoms. Studies show IgG tests frequently yield false positives and do not correlate with clinical complaints. The German Society for Allergology and Clinical Immunology (DGAKI) and other expert bodies advise against these tests, as they can lead to unnecessary restrictive diets and malnutrition—a particular risk for seniors. Evidence-based approaches like supervised elimination diets or lactose breath tests are recommended. The overall evidence level is 'marketing/unclear', as commercial claims often outpace science. Seniors should be cautious and consult a physician before altering their diet based on such tests.