Mustard seeds (Brassica juncea) are a rich source of essential oils, minerals, and vitamins. The seeds are particularly popular ingredients in the preparation of curry , chatni in india. Mustards are rich source of health benefiting minerals. Calcium, manganese, copper, iron, seleniumand zinc are some of the minerals especially concentrated in these seeds. Calcium helps build bone and teeth. Manganese used by the body as a cofactor for the antioxidant enzyme superoxide dismutase. Copper required in the production of red blood cells. Iron is essential for the red blood cell formation and cellular metabolism.