What should I know about MTHFR Frauen?

MTHFR (methylenetetrahydrofolate reductase) is a key enzyme in folate metabolism and homocysteine regulation. In women, it is frequently discussed regarding fertility, pregnancy, and hormonal health. The common variants (C677T, A1298C) can reduce enzyme activity, potentially raising homocysteine levels. However, clinical significance is often overstated. Many direct-to-consumer tests label MTHFR as a 'risk gene,' but evidence for direct links to miscarriage, thrombosis, or depression is weak to moderate. The only clear recommendation concerns folate supplementation: women with MTHFR variants may consider active folate (5-MTHF), though standard folic acid at usual doses is generally sufficient. Importantly, an MTHFR finding alone does not justify drug therapy. Homocysteine testing and medical evaluation are warranted if risk factors exist. Genetics is just one piece – lifestyle, diet, and medical guidance matter more. Marketing often exaggerates the impact; stay critical.