Mustard is highly nutritious. Both the leaves and seeds are edible. The seeds are also used to make medicines that help treat skin conditions, diabetes, cardiovascular conditions, arthritis, and lung infections. In Oriental medicine, mustard is most identified with the Lungs and treating respiratory conditions such as colds, flu, bronchitis, asthma, and other congested lung conditions. It is similarly used externally to treat skin conditions, arthritic pain, and muscle aches. Mustard is enjoyed all over the world as a condiment, spice, and for its leafy spring greens.