Can You Take Green Tea Extract (EGCG) and Vitamin B12 Together?

May affect absorption

The short answer

Green tea polyphenols may reduce B12 absorption when taken simultaneously.

How to arrange timing

Space at least 1 hour apart.

Reference

Reference noted for this combination: Examine.com 2024

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.