Does Caffeine Affect Copper?

May affect absorption or how you feel

The short answer

Tannins and polyphenols in coffee form complexes with copper, reducing its intestinal absorption.

How to arrange timing

Separate copper supplements from coffee by at least 2 hours.

Reference

Reference noted for this food and supplement combination: Examine.com 2024; NIH ODS

Important context

The effect can also change with food amount, supplement 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.