Roggen, commonly known as rye, is a cereal grain that belongs to the Poaceae family. It is primarily grown in Europe and North America and is known for its hardiness in poor soil conditions. Rye is often used to make bread, whiskey, and animal feed, and it has a distinct flavor that sets it apart from other grains. Rye is rich in dietary fiber and essential nutrients, making it a healthy choice for many diets. It can be found in various forms, including whole grain, flour, and flakes. Additionally, rye is often used in traditional dishes, such as pumpernickel bread, which is popular in German cuisine.