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Evidence-Based Supplement Research
Evidence-Based Supplement Research
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Berberine and Reduced Blood Cholesterol

Research synthesisLow evidenceSmall effect4 studies · 3 beneficial · 1 neutral · 0 harmful

Across 4 studies, 3 reported beneficial small-to-moderate effects of berberine on reducing blood cholesterol, while 1 was neutral. Statistically significant reductions in total cholesterol were observed in 2 of the 3 beneficial studies, with one meta-analysis reporting a moderate effect (−0.451 mmol/L). The most-studied dose was 500 mg twice daily (1000 mg/day), and effects were typically measured over 84 days in clinical populations with hyperlipidemia or type 2 diabetes.

  • Effective dose range: 500 mg twice daily (1000 mg/day)
  • Studied populations: Chinese men with hyperlipidemia, patients with type 2 diabetes

Caveats: Evidence base is small (only 4 studies) — conclusions should be considered preliminary. 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). One RCT (2025) found no effect on total cholesterol, suggesting the benefit may not be uniform across populations or dosing regimens.

Generated Jun 15, 2026
Doses used in studies
  • mg/day: 1,000–1,200 (median 1,100, IQR 1,050–1,150) — 2 studies
Time to effect
Median: 2.8 months · IQR 2.8 months–2.8 months · Range 2.8 months–2.8 months — Reported in 2 of 4 studies
Safety in these studies
4 of 4 papers
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