rice bran and Reduced LDL Cholesterol

Research synthesisModerate evidenceModerate effect3 studies · 3 beneficial · 0 neutral · 0 harmful

Across 3 studies (all meta-analyses or RCTs), rice bran supplementation consistently showed moderate reductions in LDL cholesterol, with effects typically observed at 8 weeks. The most studied dose was approximately 30 g/day, and benefits were seen in adults with metabolic syndrome or overweight/obesity.

Effective dose range: 30 g/day
Studied populations: adults with metabolic syndrome or overweight/obesity

Caveats: Available evidence is overwhelmingly positive — clinical literature in this area is subject to publication bias (null-result studies are less likely to be published or indexed). Additionally, the evidence base is small (only 3 studies) — conclusions should be considered preliminary.

Generated May 13, 2026

Doses used in studies

g/day: 30 (median 30, IQR 30–30) — 1 study
g/mL: 30 (median 30, IQR 30–30) — 1 study

Time to effect

Median: 8 weeks · IQR 8 weeks–8 weeks · Range 8 weeks–8 weeks — Reported in 1 of 3 studies

3 of 3 papersPopulation:

Effects of Rice Bran Supplementation on Metabolic Syndrome-Related Parameters: A Systematic Review and Meta-Analysis.
- 2025-09-17
- Meta-Analysis · n = 1,255
- International journal of molecular sciences 26(18)
- - Sirapatsorn Tantayakhom
  - Ratchanon Inpan
  - Kantirat Yaja
  - Nut Koonrungsesomboon
  - Supanimit Teekachunhatean
  - Mingkwan Na Takuathung
- PubMed: 41009614
- DOI: 10.3390/ijms26189051
3 Insights on
- Reduced LDL Cholesterol
- High evidence
- Rigorous Journal
- Clinical
reductions in ... LDL cholesterol (WMD: -14.580 mg/dL; p < 0.0001)
Effect
Beneficial
Effect size
Moderate
Significant
Yes
Rice Bran Consumption Improves Lipid Profiles: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.
- 2024-12-30
- Meta-Analysis · n = 572
- Nutrients 17(1)
- - Soo-Yeon Park
  - Yehyeon Kim
  - Min Ju Park
  - Ji Yeon Kim
- PubMed: 39796546
- DOI: 10.3390/nu17010114
3 Insights on
- Reduced LDL Cholesterol
- High evidence
- Rigorous Journal
rice bran consumption significantly reduced ... LDL-C (-15.11 mg/dL; 95% CI: -24.56, -5.66)
Effect
Beneficial
Effect size
Moderate
Significant
Yes
Dose
≥30 g/mL
An open label randomized controlled trial of the effects of rice bran oil on cardiometabolic risk factors, lipid peroxidation and antioxidant status in overweight/obese adults with metabolic syndrome.
- 2024-08-28
- RCT · n = 50
- Lipids in health and disease 23(1)
- - Marjan Mahdavi-Roshan
  - Nargeskhatoon Shoaibinobarian
  - Mehdi Evazalipour
  - Arsalan Salari
  - Zeinab Ghorbani
  - Amir Savarrakhsh
  - Zahra Ahmadnia
- PubMed: 39198792
- DOI: 10.1186/s12944-024-02260-4
17 Insights on
- Reduced LDL Cholesterol
- High evidence
- Clinical
LDL-cholesterol (P value = 0.048; ES:-0.62)
Effect
Beneficial
Effect size
Moderate
Significant
Yes
Dose
30 g/d

rice bran and Reduced LDL Cholesterol

Effects of Rice Bran Supplementation on Metabolic Syndrome-Related Parameters: A Systematic Review and Meta-Analysis.

Rice Bran Consumption Improves Lipid Profiles: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.

An open label randomized controlled trial of the effects of rice bran oil on cardiometabolic risk factors, lipid peroxidation and antioxidant status in overweight/obese adults with metabolic syndrome.