Can You Take Copper and Magnesium Together?

May affect absorption

The short answer

Copper supplements can cause nausea, while Magnesium (especially oxide) has a laxative effect. Combined use may increase GI discomfort.

How to arrange timing

Separate by at least 2 hours.

Reference

Reference noted for this combination: NIH ODS — Copper; NIH ODS — Magnesium

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.