How are IgG and Langlebigkeit related?

The relationship between IgG (immunoglobulin G) and longevity is not well established by current evidence. IgG is a key antibody involved in immune defense and regulation. Some mechanistic hypotheses suggest that balanced IgG levels may reflect a healthy immune system, which could contribute to healthy aging by reducing chronic inflammation and immunosenescence. However, no robust longitudinal studies directly link IgG levels to increased lifespan. In the consumer health space, IgG tests are often marketed for food sensitivity detection, but this application is controversial: professional guidelines (e.g., EAACI, AAAAI) advise against using IgG or IgG4 tests to diagnose food intolerances. Claims that optimizing IgG profiles can promote longevity are not supported by clinical data. The provided context does not address IgG or longevity; it focuses on cardiovascular risk markers, microbiome, and DNA tests. Therefore, any connection between IgG and longevity remains speculative. Consumers should be cautious of products that promise anti-aging benefits based on IgG testing without solid scientific backing.