Can You Take Boron and Magnesium Together?

Dose or timing may matter

The short answer

Boron supplementation can reduce urinary magnesium excretion, effectively altering magnesium homeostasis. While this may be beneficial, it can lead to unexpectedly elevated magnesium levels when both are supplemented at high doses.

How to arrange timing

Monitor magnesium levels when supplementing boron; may need to adjust magnesium dosage downward.

Reference

Reference noted for this combination: Nielsen FH et al. Effect of dietary boron on mineral, estrogen, and testosterone metabolism in postmenopausal women. FASEB J. 1987;1(5):394-397

Important context

Whether supplements suit you together also depends on dose, product formulation, health conditions, and medication use. Ask a doctor or pharmacist first if you take medication, are pregnant or breastfeeding, or have a chronic condition.