Black Seed Oil and Metabolic Syndrome
How black seed research maps onto each part of metabolic syndrome.
Key takeaways
- Metabolic syndrome is a cluster of heart and diabetes risk factors.
- Black seed has modest evidence for blood sugar, lipids and weight.
- Lifestyle change is the main treatment.
What is metabolic syndrome?
It's diagnosed when you have three or more of: large waist, high triglycerides, low HDL, high blood pressure and high fasting blood sugar.
Black seed oil and each risk factor
| Risk factor | Evidence |
|---|---|
| Blood sugar | Modest benefit in meta-analysis[^1] |
| Cholesterol & triglycerides | Modest benefit in meta-analysis[^2] |
| Weight & waist | Small benefit[^3] |
| Blood pressure | Limited, mixed data |
Read more about type 2 diabetes and high cholesterol.
When to see a doctor
Black seed oil and oregano oil are not a substitute for diagnosis or prescribed treatment. See a healthcare professional if symptoms are severe, getting worse or not improving.
Frequently asked questions
Can black seed oil reverse metabolic syndrome?
No supplement can do that on its own. Diet, activity and medical care are the main tools.
The bottom line
Black seed oil has modest evidence across several metabolic syndrome risk factors, making it a reasonable add-on to lifestyle changes.
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Sources
- Daryabeygi-Khotbehsara R, Golzarand M, Ghaffari MP, Djafarian K. Nigella sativa improves glucose homeostasis and serum lipids in type 2 diabetes: a systematic review and meta-analysis. Complement Ther Med. 2017;35:6-13.
- Sahebkar A, Beccuti G, Simental-Mendía LE, et al. Nigella sativa (black seed) effects on plasma lipid concentrations in humans: a systematic review and meta-analysis of randomized placebo-controlled trials. Pharmacol Res. 2016;106:37-50.
- Namazi N, Larijani B, Ayati MH, Abdollahi M. The effects of Nigella sativa L. on obesity: a systematic review and meta-analysis. J Ethnopharmacol. 2018;219:173-181.
