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

May affect absorption

The short answer

Green tea extract contains caffeine. Combined with caffeine supplements, total caffeine may exceed safe levels.

How to arrange timing

Account for caffeine in green tea extract when calculating total daily caffeine intake.

Reference

Reference noted for this combination: EFSA 2018

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.