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Evidence-Based Supplement Research
Evidence-Based Supplement Research

Black Cumin and Improved Insulin Levels

Research synthesisLow evidenceSmall effect3 studies · 1 beneficial · 2 neutral · 0 harmful

Across 3 studies, 1 reported a beneficial small effect of black cumin on insulin levels, while 2 meta-analyses found neutral effects. The predominant effect size across all studies was small. The median study duration was 56 days, and the only study reporting a dose used 2000 mg/day in overweight/obese women.

Caveats: Evidence base is small (only 3 studies) — conclusions should be considered preliminary. Only 1 of 3 studies (a small RCT) found a statistically significant beneficial effect; the two meta-analyses found no significant effect on insulin. The beneficial effect was small and observed specifically in overweight/obese women at 2000 mg/day for 8 weeks, so results may not generalize to other populations.

Generated Jul 4, 2026
Doses used in studies
  • mg/day: 2,000 (median 2,000, IQR 2,0002,000) 1 study
Time to effect
Median: 8 weeks · IQR 8 weeks8 weeks · Range 8 weeks8 weeks — Reported in 1 of 3 studies
3 of 3 papers
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