Does Soy foods Affect Saw Palmetto?

May affect absorption or how you feel

The short answer

Saw palmetto inhibits 5-alpha-reductase for DHT reduction. Soy isoflavones also have anti-androgenic properties, and combined use may cause excessive hormonal suppression.

How to arrange timing

Be cautious combining saw palmetto with soy-heavy diets; separate by 2 hours if possible.

Reference

Reference noted for this food and supplement combination: Examine.com; Messina, Fertil Steril 2010

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.