Can You Take Metformin and Vitamin E Together?
No documented interaction was identified between vitamin E and metformin in the sources reviewed.
See the full Metformin page and Vitamin E page for other reviewed interactions and reference information.
What the interaction means
Vitamin E's own NIH ODS Health Professional fact sheet names two interaction concerns -- bleeding risk with anticoagulant/antiplatelet medications above 400 IU/day, and reduced chemotherapy/radiotherapy effectiveness -- and metformin or diabetes medications are not among them. Metformin's FDA label does not mention vitamin E or tocopherol.
No documented interaction between Metformin and Vitamin E was identified in the authoritative sources reviewed. This is not a guarantee that no interaction exists for every dose, formulation, or individual -- it means the sources checked did not document one.
Practical context
Vitamin E's NIH ODS fact sheet and metformin's FDA label were checked directly, full text, in both directions. Vitamin E's own named interaction concerns do not include diabetes medications.
What the sources say
Last reviewed 2026-08-25
Medical information disclaimer: this information is general and educational. It does not diagnose conditions, prescribe treatment, or determine whether a combination is safe for you personally. Follow your prescription label and ask a pharmacist or clinician before starting, stopping, or combining products. Full disclaimer.
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