The effect of Nigella sativa supplementation on glycemic status in adults: An updated systematic review and meta-analysis of randomized controlled trials
Shirvani S, Falahatzadeh M, Oveili E, Jamali M, Pam P
Published in Prostaglandins & Other Lipid Mediators
Methodology
Systematic review and meta-analysis of 30 RCTs on glycemic indices, random-effects models.
Key Findings
Significant reductions in fasting blood sugar (SMD -1.71) and HbA1c (SMD -2.16); no significant effect on insulin or HOMA-IR.
Conclusions
Evidence supports Nigella sativa for lowering fasting glucose and HbA1c, but insulin resistance markers are unchanged.
Limitations
Very high heterogeneity (I2 > 92%), short trial durations, quality of primary studies variable.
Supplements Studied
N. sativa supplementation significantly reduced FBS (SMD: -1.71) and HA1c levels (SMD: -2.16) but not effect on insulin (P = 0.353), and HOMA-IR (p=0.229)
Outcomes Measured
N. sativa supplementation significantly reduced FBS (SMD: -1.71) and HA1c levels (SMD: -2.16)
Related Health Concerns
Study Details
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Disclosures
Funding
Not reported
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