Which type of fish is known for being a source of polyunsaturated fats?

Sardines are recognized as a significant source of polyunsaturated fats, particularly omega-3 fatty acids. These healthy fats are known for their various health benefits, including reducing inflammation and supporting heart health. Sardines are fatty fish that are rich not only in these polyunsaturated fats but also in other essential nutrients such as protein, vitamin D, and calcium. They offer a convenient way to incorporate omega-3s into the diet, which are often under-consumed in many populations.

In contrast, species like cod, tilapia, and catfish are generally leaner fish, containing less polyunsaturated fat compared to sardines. Cod, for instance, has a lower fat profile, making it a good source of lean protein but not as rich in omega-3 fatty acids. Tilapia tends to have a higher omega-6 to omega-3 ratio, which may not provide the beneficial effects associated with omega-3s. Catfish, while nutritious, is also lower in polyunsaturated fats and is more commonly characterized as a lean fish. Therefore, sardines stand out as the best choice when considering sources of polyunsaturated fats in fish.