Myths vs facts: tTG IgA and Langlebigkeit

tTG-IgA is a biomarker for celiac disease, not longevity. The myth that elevated tTG-IgA indicates a 'strong immune system' or extended lifespan is unsupported by evidence. In fact, a positive tTG-IgA test signals an autoimmune reaction against the body's own tissues, which, if untreated, can lead to nutrient deficiencies, osteoporosis, and increased mortality. Some marketers misleadingly promote tTG-IgA as a 'longevity marker,' but the evidence is clear: elevated levels are a warning sign, not a health asset. The only established link to longevity is that early diagnosis and a gluten-free diet can improve quality of life and prevent complications. Without celiac disease or related conditions, tTG-IgA has no predictive value for general lifespan. Consumers should be cautious of such claims.