Is Folsäure useful for Stress?

Whether folic acid (vitamin B9) is useful for stress is not clearly supported by current evidence. Folic acid is crucial for neurotransmitter synthesis (serotonin, dopamine) and a deficiency may increase stress vulnerability. However, supplementation in non-deficient individuals shows little to no benefit for stress reduction. Most positive findings come from subgroups with low folate levels or MTHFR gene variants. High doses (>1 mg/day) can mask B12 deficiency and pose risks. The provided context does not include any direct studies on folic acid and stress, so the evidence is 'unclear'. A blood test for folate and B12, plus genetic testing for MTHFR, could guide personalized supplementation, but stress management should rely on proven lifestyle interventions. In summary, folic acid is not a proven stress remedy; its role is limited to correcting deficiency.