Can I take Folic acid and Vitamin d together?
Drug interaction guide
Originally published 25 Jan 2026
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There are no known harmful interactions between folic acid (Vitamin B9) and Vitamin D. In fact, these two vitamins are frequently taken together in multivitamins and prenatal supplements.
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Why this happens
Folic acid and Vitamin D are processed by the body through different pathways. They do not compete for absorption in the gut, nor do they interfere with how each other is broken down or used by the body's cells.
What you should do
It is safe to take folic acid and Vitamin D at the same time. Always follow the dosage instructions on the packaging or those provided by your healthcare professional.
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Using other medicines
Taking multiple medicines? Our Medicines Interaction Checker helps you check whether your prescriptions, over-the-counter medicines, and supplements are safe to take together. Simply search for your medicines to see potential interactions and what to do about them.
Disclaimer
This information is for general educational purposes only and should not be relied upon as a substitute for professional medical advice. Always consult your GP, pharmacist, or another qualified healthcare professional before making decisions about your medications. Individual circumstances may vary, and only a healthcare professional who knows your medical history can provide personalised guidance.
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Article history
The information on this page is written and peer reviewed by qualified clinicians.
25 Jan 2026 | Originally published

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