Shredded bonito flakes, also known as katsuobushi, is a type of dried and fermented fish that is commonly used in Japanese cuisine. The fish is typically bonito, a type of tuna that has been smoked and dried before being shaved into thin flakes. Shredded bonito flakes have a smoky, umami-rich flavor and a slightly chewy texture. They are often used as a seasoning for dishes such as soups, stews, and noodle dishes, as well as a topping for rice dishes and salads. Shredded bonito flakes are a good source of protein and other important nutrients, and they are low in calories and fat. They are a convenient ingredient to have on hand for adding a complex flavor to dishes and are a popular choice among Japanese cuisine enthusiasts.