Can You Take Omega-9 and Phytosterols Together?

Dose or timing may matter

The short answer

Phytosterols reduce intestinal cholesterol and lipid absorption, which may also impair absorption of Omega-9 (oleic acid) supplements since oleic acid is incorporated into the same lipid micelles.

How to arrange timing

Phytosterols may reduce the absorption of Omega-9 supplements. Take them at different times if using both for cardiovascular health.

Reference

Reference noted for this combination: Ostlund RE Jr., Annual Review of Nutrition, 2002; Phytosterols and lipid absorption

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.