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Can I take Statins and Vitamin d together?

Drug interaction guide

Taking Vitamin D alongside statins (such as atorvastatin or simvastatin) may slightly lower the levels of the statin in your blood. However, Vitamin D is also known to help reduce muscle pain, which is a common side effect of statins. In many cases, these two are prescribed together to help patients tolerate their cholesterol medication better.

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Why this happens

Both Vitamin D and many statins are processed by the same enzyme in the liver (CYP3A4). Because they compete for this enzyme, Vitamin D can sometimes speed up the breakdown of the statin, slightly reducing its concentration. Conversely, statins may slightly increase Vitamin D levels in the body.

It is generally safe and often beneficial to take Vitamin D with a statin. You do not need to change how you take your medication, but you should inform your doctor if you are starting high-dose Vitamin D supplements. Your doctor will continue to monitor your cholesterol levels to ensure the statin is still working effectively.

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Pregnancy

You must not take statins if you are pregnant or planning to conceive, as they can interfere with the development of the foetus. Use effective contraception while taking them.

Muscle pain or weakness

You must report any unexplained muscle pain, tenderness, or weakness to your doctor immediately. In rare cases, statins can cause serious muscle breakdown (rhabdomyolysis).

Alcohol

While there is no direct interaction, both alcohol and statins can affect your liver. If you drink heavily, you may be at a higher risk of liver problems. It is best to stay within the recommended UK limit of 14 units per week.

High-fat meals

Vitamin D is fat-soluble. Taking your supplement with the largest meal of the day (containing some fat or oil) can significantly improve how well your body absorbs the vitamin.

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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.

Article history

The information on this page is written and peer reviewed by qualified clinicians.

  • 14 Mar 2026 | Originally published
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