Katsuo, also known as Bonito, is a type of fish belonging to the mackerel family. It is commonly found in warm ocean waters and is known for its streamlined body and strong swimming abilities. Katsuo is often used in Japanese cuisine, particularly in dishes like katsuobushi, which is dried and fermented bonito flakes used as a seasoning. In addition to its culinary uses, katsuo is also popular in sports fishing due to its fighting spirit when caught. The fish is rich in omega-3 fatty acids, making it a healthy choice for consumption. Its flavor is often described as rich and savory, appealing to many seafood lovers.