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

May affect absorption

The short answer

EGCG (green tea catechins) may bind manganese through polyphenol chelation, reducing its absorption.

How to arrange timing

Consider separating green tea extract and manganese by 2 hours.

Reference

Reference noted for this combination: Zijp IM et al., Crit Rev Food Sci Nutr 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.