Nigella sativa (black seeds) are one the most revered medicinal seeds in history. The seeds of the black cumin plant contain over 100 chemical compounds including some yet to be identified. Physicians in the Egyptian pharaohs frequently used the seeds after extravagant feasts to calm upset stomach and treat a host of other ailments. Black seeds are believed to help boost your immune system and protect against numerous ailments. They have very little aroma and can aid digestion and relieve gases in the stomach and intestines.