Can You Take Iron and Potassium Together?

May affect absorption

The short answer

Iron can cause nausea and stomach pain, and Potassium supplements can cause GI irritation. Combined intake may amplify these effects.

How to arrange timing

Separate by at least 2 hours. Take both with food.

Reference

Reference noted for this combination: NIH ODS — Iron; NIH ODS — Potassium

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.