Can I take Biotin and Vitamin d together?
Drug interaction guide
Originally published 25 Jan 2026
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There is no known harmful interaction between biotin (Vitamin B7) and Vitamin D. It is generally safe to take these two supplements together.
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Why this happens
Biotin and Vitamin D are processed by the body using different pathways. Biotin is a water-soluble B vitamin, while Vitamin D is a fat-soluble vitamin. They do not compete for absorption in the gut, nor do they interfere with how the other is broken down or used by the body.
What you should do
You can continue to take both supplements as directed by your healthcare provider or the product packaging. However, be aware that high doses of biotin can interfere with certain laboratory blood tests (such as thyroid or heart enzyme tests). If you are having blood work done, inform your doctor or the lab technician that you are taking a biotin supplement.
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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.
Descargo de responsabilidad
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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Historia del artículo
La información de esta página ha sido redactada y revisada por médicos cualificados.
25 Enero 2026 | Publicado originalmente

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