We Uncovered a Multi-Million Dollar Plot to Change What You Eat - More Perfect Union

[harumph]

2. I eat a good bit of canned north atlantic mackerel

with tomatillo sauce, cheese and pickles. Not so-called "King Mackerel." They're not the same.

Scomber scombrus:
Atlantic mackerel outer meat is red meat while inner meat is white, with a strong taste desirable to some consumers. They are sold fresh, frozen, smoked, salted, filleted, or as steaks. The fish is extremely high in oil content, vitamin B6, vitamin B12, selenium, niacin,[16] and omega 3, a class of fatty acids, containing nearly twice as much of the latter per unit weight as salmon. Unlike the King and Spanish species, Northern Atlantic mackerel are very low in mercury, and can be eaten at least twice a week according to United States Environmental Protection Agency guidelines.[17][18]

https://en.wikipedia.org/wiki/Atlantic_mackerel#As_food