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Bs8.5
Beta-Sitosterol Research
Likely helpsHigh safety
26 peer-reviewed studies
What the evidence says
Likely helps
Beta-Sitosterol appears to help in 3 of 4 studies with measurable effects — the evidence leans clearly favourable.
Most evidence is from high-quality meta-analyses and randomised trials published 1995–2026 with a typical study size of 351 participants.
Based on 26 studies · 8 meta-analyses · 11 RCTs · 35,149 total participants
Confidence
High
What the studies found
3helped1didn't help· 22 more without graded effect data
3Serum levels of campesterolMeta-AnalysisCited 2×n=9,758 · very large study2024
This meta-analysis examined the effects of Beta-Sitosterol.
Alenbawi J et al. · Human genomics (2024)
The meta-analysis replicated most of the reported variants, and our study provided significant support for the association of variants in SCARB1 and ABO with sitosterolemia.
Evaluation of a polygenic risk score devised from European GWAS data showed moderate performance when applied to QBB (adjusted-R2 = 0.082).
These findings provide new insights into the genetic architecture of phytosterol metabolism while showing the importance including under-represented populations in future GWAS studies.
4Gouty arthritis treatment effectivenessMeta-AnalysisCited 8×n=7,151 · very large study2024
TCMD could be a satisfactory complementary and alternative therapy for GA.
Qu P et al. · Medicine (2024)
TCMD could be a satisfactory complementary and alternative therapy for GA.
However, it should be verified by further studies.
Future research could be conducted from the following active ingredients, targets, and signal pathways, such as wogonin, sitosterol, and sitosterol; AKT1, TNF, IL6, and TP53; and IL-17, HIF-1, and PI3K-AKT signaling pathway.
10Antidiabetic activity of natural compoundsSystematic ReviewCited 39×2018
This review contributes to the field of ethnopharmacology and should impact the design of new strategies in the search of novel compounds for the treatment of diabetic conditions.
Munhoz ACM et al. · Current diabetes reviews (2018)
This review contributes to the field of ethnopharmacology and should impact the design of new strategies in the search of novel compounds for the treatment of diabetic conditions.
This article includes written and statistical analysis of clinical trials, plus a compilation of expert opinion, folkloric precedent, history, pharmacology, kinetics/dynamics, interactions, adverse effects, toxicology, and dosing.
Ulbricht CE · Journal of dietary supplements (2016)
An evidence-based systematic review of beta-sitosterol, sitosterol (22,23-dihydrostigmasterol, 24-ethylcholesterol) by the Natural Standard Research Collaboration consolidates the safety and efficacy data available in the scientific literature using a validated, reproducible grading rationale.
This article includes written and statistical analysis of clinical trials, plus a compilation of expert opinion, folkloric precedent, history, pharmacology, kinetics/dynamics, interactions, adverse effects, toxicology, and dosing.
The unique contribution of this review lies in proposing a comparative mechanistic framework for stigmasterol, campesterol, and β-sitosterol, integrating their multi-targeted actions across key oncogenic signaling pathways to highlight their collective potential in anticancer therapy.
Menaga S et al. · Cell biochemistry and function (2026)
Despite extensive individual studies, a comprehensive review summarizing their collective anticancer mechanisms is lacking.
This work bridges that gap by systematically analyzing literature from the past 10 years across major databases, including Google Scholar, ScienceDirect, Scopus, Wiley Online Library, and Web of Science.
Evidence from preclinical, clinical, and pharmacological studies was critically evaluated to highlight the therapeutic potential of these sterols in tumor suppression and apoptosis, providing a consolidated foundation for future drug discovery and development.
13LDL cholesterol levelsRCTCited 6×n=109 · medium study2024
These findings support the efficacy of United Kingdom SFA dietary guidelines for the overall lowering of serum LDL cholesterol but showed marked variation in LDL cholesterol response.
Koutsos A et al. · The American journal of clinical nutrition (2024)
Likely real
There was also an increase in plasma biomarkers of cholesterol intestinal absorption (β-sitosterol, campesterol, cholestanol), and synthesis (desmosterol) (P < 0.0001) and fold change in PBMC LDL-receptor mRNA expression relative to the higher-SFA/lower-UFA diet (P = 0.035).
These findings support the efficacy of United Kingdom SFA dietary guidelines for the overall lowering of serum LDL cholesterol but showed marked variation in LDL cholesterol response.
Further identification of the determinants of this variation will facilitate targeting and increasing the efficacy of these guidelines.
15Complete response rate for anogenital warts treatmentRCTCited 3×n=123 · medium study2015
The BSS-BSSG mixture gave promising results as an adjuvant to cryotherapy and may be used in patients with refractory warts.
Stefanaki C et al. · The Journal of dermatological treatment (2015)
Huge harm
← WorseNo effectBetter →
A complete response after 3 months was demonstrated by 18.3% of the patients in the first group and 30.2% of the second group, while 61.7% of the first group and 79.4% of the second group were lesion free at the end of the 6-month follow-up period.
Cox regression analysis of the time until response showed a significant advantage to the mixture treatment group (hazard ratio 2.76, 95% confidence interval 1.61-5.67).
The BSS-BSSG mixture gave promising results as an adjuvant to cryotherapy and may be used in patients with refractory warts.
This study demonstrates the efficacy of β-sitosterol enriched saw palmetto oil superior to conventional oil thus extending the scope of effective BPH and androgen deficiency treatment with improved quality of life through the intake of functional ingredients.
Sudeep HV et al. · BMC urology (2020)
This study demonstrates the efficacy of β-sitosterol enriched saw palmetto oil superior to conventional oil thus extending the scope of effective BPH and androgen deficiency treatment with improved quality of life through the intake of functional ingredients.
19Nitrite and nitrate production in vivoRCTCited 7×n=18 · very small study2017
Our results suggest that dietary plant sterols, in the combination used, can upregulate nitrite, and nitrate production in vivo.
Ho XL et al. · Journal of food science (2017)
Circulating levels of L-arginine and asymmetric dimethylarginine were unchanged in the placebo and treatment arms.
Total plant sterols, β-Sitosterol, campesterol, and stigmasterol concentrations were significantly elevated after 4-wk treatments compared to the placebo and 3-h treatments.
Blood plasma nitrite and nitrate concentrations correlated significantly with the plasma total and specific plant sterol concentrations.
Total plant sterols, β-sitosterol, campesterol, and stigmasterol concentrations were significantly elevated after 4-week treatments compared with the pre-treatment concentrations.
Our results suggest that dietary plant sterols, in the combination used, can alleviate lipid peroxidation and inflammatory events in vivo.