Which of the following is considered an oily fish?

Mackerel is classified as an oily fish due to its higher fat content compared to other fish varieties. This type of fish possesses a distinctive, rich flavor and is known for its nutritional benefits, particularly its omega-3 fatty acids. These healthy fats contribute positively to heart health and have anti-inflammatory properties. Oily fish are also a good source of vitamins D and A, which further enhances their nutritional profile.

In contrast, fish like cod, haddock, and tilapia are categorized as white fish or lean fish, as they contain significantly lower fat levels. While they are still nutritious and provide important nutrients, they lack the high-fat content and strong flavor profile associated with oily fish like mackerel. Recognizing these differences is crucial for culinary practices, as the cooking methods and flavor pairings often vary significantly based on the type of fish used.