Can You Take Guarana and Magnesium Together?

Dose or timing may matter

The short answer

Guarana's caffeine content raises blood pressure while magnesium is a vasodilator that lowers it. The opposing effects may reduce the cardiovascular benefit of magnesium supplementation.

How to arrange timing

If supplementing magnesium for blood pressure, consider limiting guarana intake or separating doses.

Reference

Reference noted for this combination: Moustakas D et al. Guarana provides additional stimulation over caffeine alone. Nutrients. 2015;7(5):3684-3697

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.