Raw fish refers to fish that is served uncooked, often used in various cuisines around the world. It is a key ingredient in dishes like sushi and sashimi, where the freshness and quality of the fish are essential for flavor and safety. Common types of raw fish include salmon, tuna, and mackerel. Eating raw fish can provide health benefits, as it is rich in omega-3 fatty acids, which are good for heart health. However, it is important to ensure that the fish is sourced from reputable suppliers to minimize the risk of foodborne illnesses, such as parasites or bacteria.