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

Use extra care with this pair

The short answer

High-dose EGCG has well-documented hepatotoxicity. Ashwagandha has emerging reports of hepatocellular injury. While commonly combined in wellness stacks, their combined liver burden should be considered.

How to arrange timing

Use standard doses and monitor for signs of liver stress (fatigue, dark urine, abdominal discomfort). Consider periodic liver function tests if using both long-term.

Reference

Reference noted for this combination: Navarro VJ et al., Hepatology 2017; Björnsson HK et al., J Hepatol 2020

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.