The Effect of <scp> <i>Nigella sativa</i> </scp> Supplementation on Cardiometabolic Health in Patients With Metabolic Diseases: A <scp>GRADE</scp> ‐Assessed Systematic Review and Meta‐Analysis

This meta-analysis suggests that N. sativa supplementation is associated with modest improvements in several cardiovascular risk factors. However, no significant effects were observed for measures of insulin resistance or central adiposity, and the findings should be interpreted cautiously given variability in study quality and outcomes. Further well-designed trials are needed to clarify its clinical relevance.