Expert Answer

Should you take vitamin D with magnesium?

Vitamin D stacking vitamin-d magnesium
Based on expert consensus data from publicly available videos, not medical advice. Always consult your healthcare provider before starting, stopping, or changing any supplement.

Quick Answer

Yes - magnesium is required for the enzymatic conversion of vitamin D into its active form. Hyman has a dedicated video on this interaction. Attia groups them as part of 'the big three' for bone health alongside calcium.

3.9/5

Strong Consensus

on Vitamin D overall

What Researchers Say

Mark Hyman
Mark Hyman Strongly Agrees

Dedicated video on D3+magnesium interaction. Says magnesium is required for vitamin D conversion to active form.

Peter Attia
Peter Attia Strongly Agrees

Groups calcium, D3, and magnesium as 'the big three' for bone health.

Rhonda Patrick
Rhonda Patrick Strongly Agrees

Confirms magnesium deficiency can impair vitamin D metabolism.

Detailed Answer

Vitamin D and magnesium are synergistic - magnesium is required for the enzymatic conversion of vitamin D into its active form. Hyman has a dedicated video on this interaction and recommends D3 "ideally with K2 and magnesium" as an optimized trio.

Attia calls calcium, vitamin D3, and magnesium "the big three" for bone health. Patrick confirms that magnesium deficiency can impair vitamin D metabolism.

If you are supplementing with vitamin D and not seeing improvements in blood levels, inadequate magnesium may be the bottleneck. Ensure 300-400mg daily magnesium from all sources.

Related Questions

Can I take them at the same time?

Yes. There are no absorption conflicts between vitamin D and magnesium when taken together with food.

More Questions About Vitamin D

Precis Pro

Get the exact protocol for Vitamin D

The answer above is the whole answer — every expert's position, where they disagree, and the timecode behind each one. Nothing on this page is held back.

Pro adds

  • The dose each expert actually names, and the form they name with it
  • Timing and what they say to take it with, or keep it away from
  • The interactions they flag by name
  • Chat across 3,500+ expert videos, with a timecode behind every answer

$9/mo · Cancel anytime

Full Vitamin D Consensus Report

See what all the experts agree and disagree on