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Mild· moderate-evidence
Low risk at usual doses, but report any unusual symptoms to a healthcare professional.
Green tea catechins may reduce folic acid absorption, potentially reducing effectiveness of supplementation.
EGCG inhibits dihydrofolate reductase, potentially reducing folate bioavailability.
Source: Clinical Studies · Reviewed April 2026
Green Tea + Folic Acid Supplements: low risk. Low risk at usual doses, but report any unusual symptoms to a healthcare professional. Green tea catechins may reduce folic acid absorption, potentially reducing effectiveness of supplementation.
EGCG inhibits dihydrofolate reductase, potentially reducing folate bioavailability.
Do not stop either abruptly on your own. Talk to your prescriber or pharmacist promptly — bring this page to your appointment.
Educational information only — not medical advice. Always verify with a healthcare professional.