Size: 5oz What are Nigella Sativa Black Seeds? Nigella sativa is a plant in the family Ranunculaceae, native to eastern Europe and western Asia, North Africa and east Myanmar. Are Black seed and Black seed Oil the same? Black seed oil comes from Black seeds Health Benefits: Treats gas, colic, diarrhea, dysentery, constipation, and hemorrhoids. It is also used for respiratory conditions including asthma, allergies, cough, bronchitis, emphysema, flu, swine flu, and congestion. How to use: Black Seed can be eaten raw, a tablespoon added to oatmeal, a smoothie or yogurt