Black Seed Oil (Nigella Sativa)
Grade B: Good EvidenceOil extracted from Nigella sativa seeds, traditionally used for inflammation, metabolic health, and immune support.
Overview
Black seed oil (Nigella sativa) has been used in traditional medicine for over 2,000 years, earning the Arabic name "Habbatul Barakah" meaning "seed of blessing." Modern research has identified thymoquinone (TQ) as the primary bioactive compound responsible for many of its therapeutic effects.
Black seed oil demonstrates broad-spectrum biological activity, with documented anti-inflammatory, antioxidant, metabolic, and immune-modulating properties. It's particularly well-studied for metabolic syndrome, type 2 diabetes, inflammatory conditions, and respiratory health.
Active Compounds
- • Thymoquinone (30-48% of volatile oil)
- • Thymohydroquinone
- • Thymol
- • Essential fatty acids (linoleic acid, oleic acid)
- • Nigellidine and nigellicine (alkaloids)
Primary Uses
- • Type 2 diabetes and insulin resistance
- • Metabolic syndrome
- • Inflammatory conditions (asthma, rheumatoid arthritis)
- • Cardiovascular health (blood pressure, lipids)
- • Immune support
How It Works
Black seed oil's therapeutic effects are mediated through multiple pathways:
**Anti-inflammatory Actions:** - Inhibits NF-kB and COX-2 pathways - Reduces pro-inflammatory cytokines (IL-1β, IL-6, TNF-α) - Modulates arachidonic acid metabolism - Suppresses inflammatory gene expression
**Metabolic Effects:** - Improves insulin sensitivity through multiple mechanisms - Enhances glucose uptake in peripheral tissues - Reduces hepatic gluconeogenesis - Improves lipid metabolism (reduces LDL, triglycerides; increases HDL) - Activates AMPK signaling
**Antioxidant Activity:** - Direct free radical scavenging (thymoquinone) - Enhances endogenous antioxidant enzymes (SOD, catalase, glutathione) - Reduces lipid peroxidation - Protects mitochondrial function
**Immune Modulation:** - Balances Th1/Th2 responses - Enhances NK cell and macrophage activity - Modulates antibody production
The synergy between thymoquinone and other compounds in whole black seed oil appears important for full therapeutic effects.
Evidence by Condition
Evidence for Insulin Resistance
Verdict:
Good evidence for improving insulin sensitivity and glycemic control
Overall Assessment:
1 of 1 study shows positive effects. Includes 1 RCT.
Where to Buy
Affiliate links below
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Amazing Herbs
Black Seed Cold-Pressed Oil
$18.99
90 capsules
Pros
- Cold-pressed for maximum thymoquinone content
- Organic and non-GMO
- Affordable
- Convenient softgel form
Cons
- Requires multiple capsules for higher therapeutic doses
- Thymoquinone percentage not standardized/listed
Why we recommend:
High-quality, affordable black seed oil from a reputable manufacturer. Good choice for general immune and metabolic support.
Zhou Nutrition
Black Seed Oil with Vitamin E
$24.99
60 capsules
Pros
- Higher dose per capsule (1000mg)
- Added vitamin E for antioxidant support
- Third-party tested
Cons
- Higher per-dose cost
- Vitamin E addition may not be necessary for everyone
Why we recommend:
Convenient high-dose option for therapeutic use in metabolic or inflammatory conditions. The added vitamin E may enhance antioxidant effects.
Frequently Asked Questions
Affiliate Disclosure
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Medical Disclaimer
This information is for educational purposes only and is not intended to diagnose, treat, cure, or prevent any disease. Always consult a qualified healthcare provider before starting any supplement, especially if you have existing health conditions or take medications.
Written by
Sarah Mitchell
CNT, Dip.NT
Sarah Mitchell is a certified nutritional therapist and health writer with over 10 years of experience researching alternative and integrative health approaches. She specializes in evidence-based analysis of dietary supplements and functional medicine interventions.
Research verified by
Dr. Michael Rodriguez
ND, PhD • Naturopathic Doctor & Clinical Researcher
Reviewed on January 9, 2024