\nBlack seed oil may also be beneficial for some health conditions, including the following: \n \nCancer \n \nRecent studies have shown that the thymoquinone in black seed oil can influence programmed cell death, or apoptosis, in several types of cancer cell. These include�brain cancer,�leukemia, and�breast cancer�cells. \n \nHowever, much of the research on the effects of black seed oil on cancer uses cells rather than live humans, so researchers do not yet know how effective the oil may be to treat people with cancer. \n \nLiver and kidney function \n \nAccording to a�2013 study�on rats, black seed oil may reduce liver and kidney disease complications and improve the organ structures. Researchers do not know if these effects would also occur in humans. \n \nDiabetes \n \nAccording to an�article�in the�Journal of Endocrinology & Metabolism, black seed oil may have antidiabetic properties and improve blood sugar levels. Again, this study used animal models, so more research is necessary to confirm the effectiveness of the oil in humans. \n \nInfertility \n \nA�placebo-controlled clinical trial�on men with abnormal sperm and�infertility�has found that black seed oil can improve sperm movement and increase sperm count and semen volume.