If you’re already taking vitamin D and considering magnesium glycinate, good news: not only can you take them together—they actually work better as a team.
🔗 How Magnesium and Vitamin D Work Together
Magnesium is required for your body to properly metabolize vitamin D. Without enough magnesium, vitamin D can’t be converted into its active form—and your body may not absorb calcium effectively either.
In other words: low magnesium levels can limit the effectiveness of vitamin D supplements.
✅ Safe to Take Together
According to the National Institutes of Health (NIH), magnesium helps regulate vitamin D activity, and taking them together may improve bone health, immune support, and overall wellness.[1]
- No known negative interactions between magnesium glycinate and vitamin D
- Many high-quality multivitamins combine both nutrients for a reason
💊 When to Take Them
You can take both at the same time—ideally with food to support absorption. Some people prefer to take magnesium glycinate in the evening because of its calming effects, and vitamin D in the morning.
🧠 Tip:
If you’ve been supplementing vitamin D without much improvement in lab levels, adding magnesium glycinate may be the missing piece.
Bottom line: Yes, you can—and should—consider taking magnesium glycinate and vitamin D together. They support each other’s function and are safe for most healthy adults.
Need a good place to start? Check out our Top Picks for magnesium glycinate supplements that work well in combo with vitamin D.
Disclaimer: This article is for informational purposes only and is not a substitute for medical advice. Always consult with your healthcare provider before starting new supplements.