Can You Take Calcium and Zinc Together?

May affect absorption

The short answer

High-dose calcium (≥600 mg) can reduce zinc absorption by competing for the same intestinal transport mechanism.

How to arrange timing

Space these at least 2 hours apart for optimal absorption.

Reference

Reference noted for this combination: NIH ODS 2024

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.