Nigella seeds, also known as Nigella sativa or black cumin, are small, black, angular seeds with a slightly bitter, peppery flavor. Commonly used in Middle Eastern, Indian, and Mediterranean cuisines, they add a distinctive taste to breads, curries, and salads. Rich in essential oils, antioxidants, and vitamins, nigella seeds are known for their potential health benefits, including boosting the immune system, aiding digestion, and reducing inflammation.