Can I take Vitamin c and Vitamin d together?
Drug interaction guide
Originally published 25 Jan 2026
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There is no known negative interaction between Vitamin C (ascorbic acid) and Vitamin D (cholecalciferol). In fact, they are often taken together in multivitamin supplements.
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Why this happens
These vitamins use different pathways for absorption and metabolism. Vitamin C is water-soluble and Vitamin D is fat-soluble, meaning they do not compete for the same transport systems in the body.
What you should do
It is safe to take these two vitamins together. For the best absorption of Vitamin D, it is recommended to take it with a meal that contains some fat (such as yoghurt, eggs, or avocado).
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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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