Adzuki or Fava beans are legumes that are native to East Asia and the Mediterranean region. They are small, reddish-brown beans that have a sweet, nutty flavor. Adzuki beans are commonly used in Japanese cuisine, while Fava beans are popular in Middle Eastern and Mediterranean dishes. Both types of beans are high in protein and fiber, and can be used in a variety of dishes, from soups and stews to salads and desserts.