Compound Profile
Beta Sitosterol
Cholesterol support; safety screen: sitosterolemia; fat soluble vitamin absorption concerns.
Last reviewed: •1 source citedReport a correctionProfile-wide ·D Preliminary
Use extra caution — Avoid with sitosterolemia; long term high intake may affect sterol handling. Details
- Evidence
- Preliminary evidence
- Typical onset
- Varies by prep
- Safety rating
- Use extra caution: Use caution
- Best for
- Intestinal Cholesterol Transport
Safety
Safety & Cautions
Avoid with sitosterolemia; long term high intake may affect sterol handling.
High caution
Caution level: High. Multiple caution categories apply, or the record uses avoid/contraindication language.
Evidence Summary
Profile-wide ·D PreliminaryEvidence lens
Early signal that needs stronger human replication before practical claims.
PreliminaryPreliminary evidence
Human clinical evidence: Present in source signals
Mechanistic / preclinical: Mechanism mapped — Inflammatory Signaling Modulation · Oxidative Stress Modulation · Metabolic Regulation
Research maturity: Preliminary research — Early findings are not treated as established consumer benefit.
Safety boundary: Safety note available — Avoid with sitosterolemia; long term high intake may affect sterol handling.
This profile cites 1 human study.
Evidence Strength
Confidence estimate based on the design quality and consistency of published clinical trials.
Beta Sitosterol has a preliminary evidence rating.
AdaptogenStress & MoodLongevity
Citation density
1.0
Sources
1
Effects
1
Research recency
Mixed recency
Evidence Grade
Grade D: Preliminary / Theoretical Evidence
Evaluation of methodological rigor, population reach, and evidence alignment.
- Design Match
- Randomized controlled trial
- Risk of Bias
- Low
- Consistency
- Not assessed
Strongest recorded design is a randomized controlled trial, drawn from 1 recorded study, 1 in people.
How evidence grades work
Each grade reflects the strength and consistency of published human evidence — not marketing claims. Grades are based on study count, design quality, effect size, consistency, and recency.
- Strong
- Multiple RCTs, consistent direction, adequate effect size
- Moderate
- Some RCTs or consistent observational data in humans
- Preliminary / Mixed
- Animal or in-vitro only, or conflicting human data
- Traditional / Theoretical
- Traditional use only; no controlled human trials
Clinical Study Summaries (1)1 human evidence source · 1 human trial · ~177 participants across 1 human evidence source with reported N · Consistency not yet classifiable
What the evidence actually shows
This table contains 1 structured source, including 1 human evidence source; 1 is a human trial. Across 1 human evidence source with a reported sample size, the approximate participant total is 177; overlapping publications may include some of the same people.
| Study | Design | N | Dose | Duration | Population | Outcome | Result & magnitude | Source |
|---|---|---|---|---|---|---|---|---|
PubMed · Br J Urol · 1997 Background | Randomized controlled trial Randomly assigns participants to interventions or controls, reducing many sources of bias when the trial is conducted well. | n=177 | — | — | — | — | — | PubMed → |
How Beta Sitosterol Works
Simplified mechanism pathway based on preclinical and pharmacological evidence. Does not confirm clinical efficacy.
Mechanism Pathway — How Beta Sitosterol Works
CompoundTarget / ReceptorMechanismEffect / Outcome
Dosing
- Common form
- capsule or standardized extract
- No standardized dose
- Our source data records the usual product form for this ingredient but no studied dose. Preparations differ widely, so follow the standardization on the product you actually have and speak to a clinician before starting.
Mechanisms & biological pathways
Preclinical mechanism details from scientific profiles; these represent plausible pathways but do not guarantee clinical efficacy in humans.
- Inflammatory Signaling Modulation
- Oxidative Stress Modulation
- Metabolic Regulation
- Vascular Function Support
- Lipid Metabolism Support
- Lipid Metabolism
Botanical Context
Source botanicals and comparison guides related to Beta Sitosterol.
Found in
Compare active botanicals
Compare & Sourcing
Compare side-by-side tradeoffs or verify active marker guidelines.
Safety first · Harm reduction
This information is educational and not medical advice. Start low, avoid risky combinations, and consult a licensed clinician before making health decisions—especially if you use medications, have diagnosed conditions, or are pregnant/breastfeeding.
Learn how we evaluate confidence, safety, and intensity on the methodology page.
Founder & Head Researcher · Oak Ridge, TN · Last reviewed August 2026
Editorial Review
Checked against primary sources, cited evidence, and contraindication language before publication. Evidence claims, safety language, and affiliate modules are reviewed independently. Not personal medical advice.
Help improve this profile
Was this useful for your research?
These controls record only the page and the structured choice you make when analytics consent is enabled. Please don’t include personal medical information in research requests.
Was this evidence summary clear?
Did you find what you were researching?
Free safety checklist
Get the Beta Sitosterol evidence notes
Occasional research updates, safety context, and product-quality checks for supplement decisions.
We use your email to send the checklist and occasional evidence-first supplement updates. Unsubscribe anytime. Privacy policy.