Does Tea Affect Valerian Root?

Amount or timing may matter

The short answer

Caffeine in tea opposes valerian's sedative and GABAergic effects, reducing its efficacy for sleep and relaxation.

How to arrange timing

Avoid tea at least 4 hours before taking valerian.

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.