Black seed is the common name for the seeds of the Nigella sativa plant, which grows in southern Europe, the Middle East, and southwest Asia. It’s also known as nigella, black cumin, fennel flower, black caraway, and Roman coriander.
Black seed oil is extracted from these seeds. Capsules of the oil may be found in health stores and online. Both the oil and the seeds, which can be consumed raw or lightly toasted, have long been used as a medicinal plant in the regions where N. sativa is grown.
Black seed has proven to reduce inflammation and relax smooth muscles, easing the symptoms of people with asthma in clinical studies. Combined with its antioxidant properties, these effects help prevent gastrointestinal disorders and relieve related symptoms.