Can You Take Beta-Sitosterol and Phytosterols Together?

Use extra care with this pair

The short answer

Beta-Sitosterol is a major component of phytosterol blends. Taking both stacks the same class of plant sterols, which may excessively inhibit cholesterol absorption and reduce fat-soluble vitamin uptake.

How to arrange timing

Avoid combining Beta-Sitosterol with a separate phytosterol supplement as you would be doubling the same active compounds. Choose one source.

Reference

Reference noted for this combination: Ostlund RE Jr., Annual Review of Nutrition, 2002; Phytosterols in human nutrition

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.