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Can I take Probiotics and Vitamin d together?

Drug interaction guide

There is no evidence that probiotics and vitamin D interfere with each other. In fact, they are often taken together because they may work in harmony to support your immune system and gut health. Some studies even suggest that certain probiotics might help your body absorb vitamin D more effectively.

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Why this happens

Probiotics (beneficial bacteria) and vitamin D (a fat-soluble vitamin) use different pathways in the body. Probiotics live in the gut and influence the microbiome, while vitamin D is absorbed into the bloodstream. There is no competition for absorption or metabolism between the two.

It is safe to take these together. For the best results, take your vitamin D with a meal that contains some fat (like yoghurt, eggs, or avocado) to help with absorption. Probiotics can be taken at the same time or as directed on the product label.

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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.

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Article history

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

  • 14 Mar 2026 | Originally published
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