Can You Take Colloidal Gold and Iron Together?

May affect absorption

The short answer

Colloidal gold nanoparticles may interact with iron ions in the GI tract, forming complexes that reduce iron absorption. Gold nanoparticles are known to bind metal cations in aqueous environments.

How to arrange timing

Consider separating colloidal gold and iron supplements by at least 1 hour.

Reference

Reference noted for this combination: Dykman LA, Khlebtsov NG. Gold Nanoparticles in Biology and Medicine: Recent Advances and Prospects. Acta Naturae. 2011;3(2):34-55.

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.