Questions people ask about MTHFR Ernährung

MTHFR variants (e.g., rs1801131) are common and often misinterpreted as a direct need for special diets or methylfolate supplements. Current evidence is unclear: no RCTs show that children with such variants benefit from tailored nutrition or high-dose methylfolate. The clinically relevant marker is blood homocysteine, not the genotype alone. If homocysteine is normal, no intervention is warranted. A balanced diet rich in natural folate (leafy greens, legumes, whole grains) is recommended for all children, regardless of MTHFR status. Methylfolate supplements should only be used if a deficiency or elevated homocysteine is confirmed under medical supervision. The effect size of single MTHFR SNPs on folate metabolism is small and overshadowed by overall diet and lifestyle. In summary: no evidence supports dietary changes based solely on MTHFR genetic testing in children; caution against overinterpretation of direct-to-consumer genetic results.