Folate, Folic Acid, 5-MTHF, and DFE: Reading Labels

Folate labels require separating folic acid or 5-MTHF form from mcg DFE and checking the actual amount supplied.

This page is for general reference only and is not medical advice, diagnosis, treatment, or prescription. Research and regulatory status can change, so ask a qualified professional when medical judgment is needed.

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U.S. labels can list folate in mcg DFE with the folic acid or 5-MTHF amount in parentheses. Comparing only the DFE number can be misleading.

What to compare on product labels

• Identify folic acid versus methylfolate or 5-MTHF.
• Read mcg DFE separately from the actual folic acid or 5-MTHF amount in parentheses.
• Add folate across prenatal, multivitamin, and B-complex products.

Other names and search terms

Ingredients often compared together

Cautions

• High folic acid intake can mask the anemia caused by vitamin B12 deficiency, so long-term high doses need care.
• For pregnancy planning or pregnancy, follow individualized professional guidance.

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