Barley (also called groats) is botanically known as Hordeum vulgare, and is believed to originate in western Asia or Ethiopia. Dating back to the stone age, barley is still considered one of the top five cereal grains in the world. Only ten percent of barley is used as human food, while a full third is used for brewing malt beverages, including beer and whiskey. However, the majority of harvest barley is used for livestock feed. Barley is also a prime ingredient in the making of one variety of the popular Japanese condiment called miso.