Can You Take Calcium and Postnatal Vitamin Together?

May affect absorption

The short answer

Postnatal vitamins typically contain calcium. Additional calcium supplementation may exceed the recommended intake and compete with iron and zinc absorption from the postnatal vitamin.

How to arrange timing

Check calcium content in your postnatal vitamin before adding separate calcium. Space additional calcium 2 hours from the postnatal vitamin.

Reference

Reference noted for this combination: NIH ODS Calcium Fact Sheet 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.