The chicory plant has been used by humans for a very long time, for both medicinal and culinary purposes. Nowadays, different varieties of chicory plants are cultivated in various regions across the globe. While some varieties are used as vegetables, like the leaves of radicchio; others are grown for their roots. In some regions, chicory roots are used for brewing beer. Of late, chicory root extract is very much in demand, and is widely used as a dietary supplement that is rich in fiber.