Black seed oil may have other benefits for health, including:
Anticancer effects. Test-tube studies have shown thymoquinone in black seed oil to help control the growth and spread of several types of cancer cells .
Reduce symptoms of rheumatoid arthritis. Due to its anti-inflammatory effects, limited research suggests that black seed oil may help reduce joint inflammation in people .
Male infertility. Limited research suggests that black seed oil may improve semen quality in men diagnosed with infertility.
Antifungal. Black seed oil has also been shown to have antifungal activities. In particular, it may protect against Candida albicans, which is a yeast that can lead to candidiasis .