Metabolic health evidence brief
Nigella sativa has human research in metabolic and respiratory outcomes, but the evidence supports modest marker effects rather than broad immune or cure-all claims.
Umbrella and clinical-trial reviews report signals for blood pressure, lipids, glucose, and asthma control, with small-study and heterogeneity limits.
Trials use seed powder, oil, and extracts with different thymoquinone content; food spice use is not equivalent to concentrated oil capsules.
Use caution with pregnancy, anticoagulants, glucose-lowering medication, blood-pressure medication, allergies, or planned surgery.
Source Drawer
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