Black seed oil (also called nigella sativa, kalonji or black caraway) is an amber-colored oil with powerful anti-oxidant properties. It contains thymoquinone, which may offer weight loss support, improve skin conditions, heal wounds and treat cancer and diabetes, among other benefits. A variety of studies have suggested that black seed oil can also help prevent metabolic syndrome, a group of risk factors that increases the risk of heart disease, stroke and type 2 diabetes.
In a study of people with rheumatoid arthritis, ingesting black seed oil reduced swollen joints and morning stiffness by increasing the lubrication between the joints. It may also decrease the production of inflammatory compounds that cause this chronic autoimmune disorder.
Taking black seed oil twice daily reduced indigestion, bloating and abdominal pain in people with dyspepsia. It may also reduce the number of ulcers caused by a bacterium called H. pylori.
In another small study, topical application of a black seed oil extract was just as effective as a prescription steroid cream in decreasing hand eczema symptoms. It was also better than a placebo at preventing the return of symptoms.
Although some evidence supports black seed oil’s use as a treatment for certain conditions, other studies haven’t found that it’s effective or has any side effects. If you choose to take black seed oil, it’s important to talk to your doctor and to compare products before choosing one. It’s also a good idea to buy a supplement that has been certified by a third-party organization for quality. Black seed oil