Beta-Sitosterol
Phytosterol
Beta-sitosterol is a dietary plant sterol with very low oral bioavailability. Free sterol and ester products require separate dose accounting.
Pharmacokinetic model
A route-level PK model for beta-sitosterol is being prepared from published data. Dosing references, studies, and documented interactions are below; the app catalog is updated as models are validated.
Key facts
- Category
- Phytosterol
- Suggested cadence
- once daily
Research behind this entry
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Absolute oral bioavailability and metabolic turnover of beta-sitosterol in healthy subjects
Oral and intravenous radiolabeled microtracers in healthy adults estimated 0.41% absolute bioavailability, 85 mL/h clearance, and a 46 L distribution volume. The microdose design does not validate supplement-dose…
1 published study referenced in the app, each with a plain-language summary.