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Does Tea Affect Green Tea Extract (EGCG)?
May affect absorption or how you feel
The short answer
Tea already contains EGCG. Additional EGCG supplements with tea may cause excessive catechin intake.
How to arrange timing
Account for tea EGCG content when taking EGCG supplements.
Reference
Reference noted for this food and supplement combination: Examine.com 2024
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.