Mackerel and other small fish have been celebrated as high in omega-3s, vitamin D and low on the food chain. That last point means they don't accumulate heavy metals including mercury, like swordfish, tuna and other predatory, large fish. All this boils down to one simple fact: They're good for you.
Now mackerel is an indulgence in more way than one.
Now, according to NPR, there's another reason to celebrate: The harvesting of these fish has been found to be significantly easier on the environment than other, more popular species. In fact, small fish are among the most energy- and carbon-efficient forms of protein production, according to a study conducted at Dalhousie University in Halifax.More »