Mustards are members of the cruciferae or Brassicaceae family. Mustards are also widely used as green vegetables, as a salad crop, as an important oil seed crop mainly in India and in many other countries. Mustard seeds are good source of oil and protein. Mustard seeds have a pungent aroma. Mustard is used in practice to treat coughs and colds, and to lessen up the swelling. To stimulate the blood circulation, to treat arthritis and rheumatism, to relax stiff muscles and to warm cold feet plaster of mustards were used. Mustards have the potential to treat the skin related disorders because of high sulfur content. The flow of salivary and gastric juices is also stimulated by mustard and promotes appetite. It has been used as laxative, for the treatment of asthma and induces vomiting or relieving coughs. Ingestion of mustard seeds may impart body odours. The present review was carried out to find the beneficial effects of the Mustard seeds on human body.