What to watch with Folsäure and Langlebigkeit?

The relationship between folic acid (vitamin B9) and longevity is not well-established. Folate is crucial for DNA methylation and repair, processes linked to aging. Observational studies suggest adequate folate status may reduce cardiovascular mortality, but randomized trials have not consistently shown that supplementation extends lifespan. High folic acid intake can mask vitamin B12 deficiency and may theoretically promote growth of pre-existing neoplasms. Genetic variants like MTHFR C677T alter folate metabolism, meaning individual responses vary. For longevity, obtaining folate from whole foods (leafy greens, legumes) appears more prudent than high-dose supplements without a medical need. The evidence is mixed: mechanistic and epidemiological support exists, but robust clinical proof of a direct anti-aging effect is lacking. Caveat: None of the provided context sources address folic acid and longevity specifically.