Can You Take Guarana and Kava Together?

Dose or timing may matter

The short answer

Guarana's stimulant properties may counteract kava's GABAergic sedation.

How to arrange timing

Separate intake by several hours.

Reference

Reference noted for this combination: Haskell et al., 2007, J Psychopharmacol

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.