Can You Take Dong Quai and Fennel Together?

Dose or timing may matter

The short answer

Both Fennel and Dong Quai have phytoestrogenic properties. Combined use may produce additive estrogenic stimulation.

How to arrange timing

Consider limiting to one phytoestrogenic herb for predictable hormonal effects.

Reference

Reference noted for this combination: Journal of Medicinal Food, 2005; 8(3): 407-412

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.