Can You Take Copper and Green Tea Extract (EGCG) Together?

May affect absorption

The short answer

EGCG (green tea catechins) may chelate copper ions, reducing copper bioavailability when taken together.

How to arrange timing

Consider separating green tea extract and copper by 2 hours.

Reference

Reference noted for this combination: NatMed Pro Green Tea Monograph; Zijp IM, 2000

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.