Can You Take L-Arginine and Potassium Together?

Dose or timing may matter

The short answer

L-Arginine lowers blood pressure via nitric oxide production while potassium lowers BP through sodium excretion and vasodilation. Combined use may produce additive hypotensive effects.

How to arrange timing

Monitor blood pressure when supplementing both for cardiovascular health.

Reference

Reference noted for this combination: Whelton PK et al. Effects of oral potassium on blood pressure. JAMA. 1997;277(20):1624-1632

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.