Black Seed Oil (Nigella Sativa)
Traditional seed oil showing promise for metabolic health, inflammation, and immune function in multiple small trials.
Human Trials
45
2,800 participants
Risk Level
Monthly Cost
Quality varies significantly between brands; cold-pressed oil typically costs more
Quick Facts
- Category
- Supplement
- Research Field
- Supplements
- Evidence Grade
- B- – Promising
- Risk Level
- Low
- Monthly Cost
- $15 – $40
- Human Trials
- 45
Typical Dose
1–2 g/day (thymoquinone ~1–3%)
Range
0.5–3 g/day
For informational purposes only – not medical advice. See disclaimer
Research Velocity
Mechanism of Action
Black seed oil contains thymoquinone and other bioactive compounds that appear to modulate inflammatory pathways, enhance antioxidant activity, and influence glucose metabolism. Research suggests it may work through NF-κB pathway inhibition, AMPK activation, and modulation of cytokine production. The oil's components may also support immune function through effects on T-cell proliferation and natural killer cell activity.
Overview
Black seed oil, extracted from Nigella sativa seeds, has been used in traditional medicine for centuries and is now the subject of growing scientific interest. Research indicates that this oil contains numerous bioactive compounds, particularly thymoquinone, which may contribute to various health benefits. Multiple small-scale human trials suggest that black seed oil supplementation may help support healthy blood sugar levels, reduce inflammatory markers, and potentially aid in weight management.
Studies have investigated black seed oil's effects on metabolic health, with several trials showing modest improvements in glucose control and lipid profiles in people with type 2 diabetes. Additional research has explored its anti-inflammatory properties, with some evidence suggesting it may help reduce markers of systemic inflammation. The oil has also been studied for its potential cardiovascular benefits and immune system support, though most trials have been relatively small in scale.
While black seed oil appears to be well-tolerated by most people, research indicates it may interact with certain medications, particularly those affecting blood sugar or blood clotting. The quality of black seed oil products can vary significantly between manufacturers, with cold-pressed oils generally considered superior. As with any supplement, individuals should consult healthcare providers before use, especially those taking medications or managing chronic health conditions.
Known Interactions
- May enhance effects of blood sugar-lowering medications
- Could potentially interact with blood pressure medications
- May increase bleeding risk when combined with anticoagulants
- Possible interactions with immunosuppressive drugs due to immune-modulating effects
Legal Status by Country
Your country (United States)
Available without prescription in:
Australia, Brazil, Canada, China, Colombia, Germany, India, Israel, Japan, Mexico, Netherlands, Panama, Russia, South Korea, Switzerland, Thailand, Turkey, UAE, United Kingdom, United States
📍 = your selected country · ✈️ = medical tourism destination · Always verify current local regulations before travel.
Key Research
- 2017
- 2021Immunomodulatory effects of black seed oil: A comprehensive review
Immune system effects review
- 2022Cardiovascular effects of Nigella sativa: A systematic review of clinical trials
Cardiovascular health analysis
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Last verified: 2026-03-19