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Evidence-Based Supplement Research
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Cinnamon and Reduced Triglyceride Levels

Research synthesisModerate evidenceMixed effect size5 studies · 4 beneficial · 1 neutral · 0 harmful

Across 5 studies, 4 reported beneficial effects of cinnamon on triglyceride reduction, with effect sizes ranging from small to large (mixed). The evidence primarily comes from clinical populations with type 2 diabetes, dyslipidemia, or PCOS, and the median study duration was 57 days (~8 weeks). The most frequently studied dose is ≤2 g/day, though dosing is inconsistent across studies.

  • Studied populations: people with type 2 diabetes, dyslipidemia, or PCOS

Caveats: One high-quality RCT (evidence score 6) found no significant effect, and the meta-analyses exhibit high heterogeneity (e.g., I²=88%), suggesting inconsistent results across studies. Effect sizes varied from small to large, and only 2 of 5 studies reported duration (median 57 days), limiting certainty about timing. The evidence is largely from clinical populations, so generalizability to healthy individuals is unclear.

Generated Jul 5, 2026
Doses used in studies
  • mg/day: 600 (median 600, IQR 600–600) — 1 study
Time to effect
Median: 8.1 weeks · IQR 6.2 weeks–10.1 weeks · Range 4.3 weeks–2.8 months — Reported in 2 of 5 studies
Safety in these studies
5 of 5 papers
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