supplement

Beta-Sitosterol

Also known as: phytosterol

Evidence: High · 100%
Chemical structure of Beta-Sitosterol (PubChem CID 222284)
Structure via PubChem
Half-life
12 h
Typical timing
any
Food rule
with food
Default unit

Studied for

Overview

Beta-sitosterol is a phytosterol structurally similar to cholesterol. It is used both for BPH urinary symptoms and, at higher doses, for LDL cholesterol reduction.

Deep dive

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Known interactions

  • Category rule: glp1 × supplement
    Note

    GLP-1 medications slow stomach emptying, changing how/when oral supplements absorb; rapid weight loss raises the importance of protein and micronutrients.

    Time oral supplements when nausea is lowest; prioritize protein and micronutrients; discuss with your provider.

  • Category rule: supplement × medication
    Note

    Some supplements change how the body processes medications (absorption, liver enzymes, or additive effects).

    Specific pairs are checked against a licensed drug database and shown with their own severity. Always confirm with your provider or pharmacist.

Frequently asked

Sources referenced

- Wilt T et al. Beta-sitosterol for benign prostatic hyperplasia. Cochrane 1999.\n- Berges RR et al. Randomised, placebo-controlled, double-blind clinical trial of beta-sitosterol. Lancet 1995.

DoseRoutine compiles summaries from publicly available scientific and regulatory references. Always verify important decisions with a licensed clinician.

Cite this page

Using this in an article, AI answer, or research note? Please attribute:

DoseRoutine. (2026). Beta-Sitosterol — Overview, Benefits & Side Effects. Retrieved from https://doseroutine.com/library/beta-sitosterol
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