Can I take Magnesium and Vitamin c together?
Drug interaction guide
Originally published 25 Jan 2026
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There is no harmful interaction between magnesium and vitamin C. In fact, taking them together is generally considered safe and may even be slightly beneficial for absorption.
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Why this happens
Vitamin C creates a more acidic environment in the stomach, which can help the body dissolve and absorb certain forms of magnesium more effectively. They do not interfere with each other's metabolism or excretion.
What you should do
Back to contentsYou can safely take these two supplements together. However, be aware that high doses of either magnesium or vitamin C can cause diarrhoea or stomach upset. If you experience these symptoms, try taking them at different times of the day or reducing the dose.
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Using other medicines
Back to contentsTaking 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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