Myths vs facts: Homocystein and Langlebigkeit

Homocysteine is a sulfur-containing amino acid derived from methionine metabolism. Elevated levels are a well-established risk factor for cardiovascular disease and are linked to cognitive decline. A common myth is that homocysteine directly causes aging. In reality, it is primarily a biomarker reflecting oxidative stress and inflammation. While B-vitamin supplementation (folate, B6, B12) effectively lowers homocysteine, randomized controlled trials have not consistently shown reduced all-cause mortality or extended lifespan. The evidence for a causal role in longevity is moderate at best. Genetic variants (e.g., MTHFR) can predispose to higher levels, and DNA tests can identify these, but they do not determine your fate. MyBody-X offers relevant tests, but results should be interpreted with caution and in the context of overall health. Bottom line: Homocysteine is a useful marker, but not a direct longevity switch. Lifestyle, diet, and medical guidance remain paramount.