Also known as: β-sitosterol, plant sterol, phytosterol, sitosterol, Beta-Sitosterol
Beta sitosterol is a plant sterol that helps reduce LDL cholesterol absorption in the intestines, with consistent evidence supporting modest cholesterol-lowering effects. Daily intake of 1.5-2.4 g has been shown to reduce LDL cholesterol by approximately 10% in clinical studies.
Benefits typically appear after 2-4 weeks of consistent use; long-term use is safe
Safe for most adults; limited data in children and pregnancy
We haven’t curated landmark studies for Beta Sitosterolyet — one-click into the primary literature here. PubMed (RCTs) is usually the highest-signal starting point.
Strong evidence for BPH urinary symptoms
Formulate Research Team. (2026, September). Beta Sitosterol — Evidence-Based Supplement Guide. Formulate Supplement Encyclopedia. https://app.formulate-health.app/learning/supplements/beta-sitosterol
Educational content based on published research and our scoring methodology. Not medical advice — consult a qualified healthcare provider before starting, stopping, or changing supplements, especially if you take medications, are pregnant, or have a medical condition.