Mustard oil is a vegetable oil derived from mustard seeds, widely used in cooking, particularly in Indian, Bangladeshi, and Pakistani cuisines. It has a pungent aroma and a strong, spicy flavor. Rich in monounsaturated fatty acids, mustard oil is considered heart-healthy and is known for its antimicrobial properties. Beyond culinary uses, it is also used for massage and traditional medicinal practices due to its warming and stimulating effects on the skin.