What to watch with IgG and Langlebigkeit?

IgG antibodies are part of the adaptive immune system and reflect past exposure to pathogens or foods. In the context of longevity, IgG is sometimes discussed as a biomarker for chronic inflammation or 'immune aging'. However, the evidence is weak: elevated food-specific IgG (especially IgG4) often indicates immune tolerance, not intolerance. Studies linking IgG levels to lifespan are scarce and mostly associative. Routine IgG testing for anti-aging purposes is not supported by major medical guidelines. Better-established longevity markers include CRP, IL-6, and HbA1c. Be cautious of commercial IgG tests that may lead to unnecessary dietary restrictions. A balanced diet, regular exercise, and stress reduction have far stronger evidence for promoting longevity than IgG monitoring.