Common mistakes around MTHFR Senioren

Common mistakes around MTHFR in seniors often stem from overinterpreting genetic variants like C677T. Many assume that having a variant automatically requires high-dose folic acid supplementation. In reality, heterozygous carriers have only mildly reduced enzyme activity, and even homozygous individuals often maintain adequate folate levels with a balanced diet. Another frequent error is linking MTHFR directly to cardiovascular disease. While elevated homocysteine is a risk factor, large meta-analyses show that folic acid supplementation does not significantly reduce cardiovascular events, despite lowering homocysteine. Seniors also mistakenly believe that MTHFR variants cause blood clots or dementia on their own; the evidence is weak and confounded by other factors like B-vitamin status and age. A critical oversight is ignoring homocysteine testing: without measuring it, MTHFR genotype alone is not actionable. Additionally, some avoid folic acid due to concerns about 'unmetabolized folic acid,' but for most seniors, standard supplementation (400–800 µg/day) is safe and beneficial, especially if homocysteine is elevated. The key takeaway: MTHFR is one piece of a complex puzzle. Decisions should be based on homocysteine levels, diet, and overall health, not on genotype alone. Always consult a healthcare professional before starting supplements.