Black seed (Nigella sativa, black cumin) contains thymoquinone — a bioactive compound with broad anti-inflammatory, antioxidant, and metabolic properties. Our research shows moderate evidence for blood sugar control, lipid improvement, and blood pressure reduction. Often called "the remedy for everything except death" in traditional Islamic medicine — the clinical evidence is real but more modest than the folklore suggests.
The primary active compound is thymoquinone (TQ), which constitutes 30-48% of black seed oil. TQ modulates multiple pathways: NF-κB inhibition (anti-inflammatory), AMPK activation (metabolic), PPAR-γ modulation (insulin sensitization), and antioxidant enzyme upregulation (SOD, catalase, glutathione peroxidase). It also has antibacterial and antifungal properties.
Black seed is available as whole seeds, ground seed powder, and cold-pressed seed oil. The oil form concentrates thymoquinone and is preferred for therapeutic use.
Additive blood sugar lowering → hypoglycemia risk
Additive blood pressure reduction
Thymoquinone has antiplatelet activity in vitro
In vitro CYP inhibition; clinical significance unclear
Black seed has immunomodulatory properties
Not Prohibited
Daryabeygi-Khotbehsara R et al. Nigella sativa and glycemic control: a meta-analysis.
Sahebkar A et al. A systematic review and meta-analysis of Nigella sativa on blood lipids.
Bamosa AO et al. Effect of Nigella sativa seeds on the glycemic control of type 2 diabetes.
Tavakkoli A et al. Review on clinical trials of black seed.
Reviewed by the Scan Dose Research Team and Clinical Advisory Board | Last updated: April 2026
Not medical advice. Based on published clinical research and systematic reviews.