What should I know about MTHFR Senioren?

The MTHFR gene (rs1801133, also known as C677T) plays a key role in folate and homocysteine metabolism. In seniors, reduced enzyme activity (e.g., due to the A allele) can lead to elevated homocysteine levels, which are associated with cardiovascular risk and cognitive decline. However, evidence for routine high-dose folic acid supplementation is mixed: adequate folate is important, but excess folic acid can mask vitamin B12 deficiency – a common issue in older adults – and may worsen neurological symptoms. Most studies are observational or small interventional trials; large randomized controlled trials are lacking. Therefore, any supplementation should be discussed with a healthcare provider. A MyBody-X test offers genetic insight but is not a diagnosis. Single SNP effects are small; lifestyle, diet, and medical supervision remain paramount.