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magnesium and calcium

High calcium can impair magnesium absorption

What's happening

Very high calcium intake can reduce magnesium absorption. Ideal ratio is approximately 2:1 calcium to magnesium.

Recommendation

Maintain balanced calcium:magnesium ratio. Consider splitting doses.

Timing

Can take together in moderate doses, or separate by 2 hours for high doses

Sources

  • — Journal of the American College of Nutrition

Frequently Asked Questions

Can I take magnesium and calcium together?

High calcium can impair magnesium absorption. Maintain balanced calcium:magnesium ratio. Consider splitting doses.

How should I time magnesium and calcium?

Can take together in moderate doses, or separate by 2 hours for high doses

Is this interaction dangerous?

This interaction is rated “Caution” by Formulate. Very high calcium intake can reduce magnesium absorption. Ideal ratio is approximately 2:1 calcium to magnesium.

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Medical disclaimer. This page is for educational purposes only and does not replace advice from a qualified healthcare provider.