Mackerel as food

Mackerel is an important food fish that is consumed worldwide.^[3] As an oily fish, it is a rich source of omega-3 fatty acids.^[4] The flesh of mackerel spoils quickly, especially in the tropics, and can cause scombroid food poisoning. Accordingly, it should be eaten on the day of capture, unless properly refrigerated or cured.^[5]

Mackerel preservation is not simple. Before the 19th-century development of canning and the widespread availability of refrigeration, salting and smoking were the principal preservation methods available.^[6] Historically in England, this fish was not preserved, but was consumed only in its fresh form. However, spoilage was common, leading the authors of The Cambridge Economic History of Europe to remark: "There are more references to stinking mackerel in English literature than to any other fish!"^[7] In France mackerel was traditionally pickled with large amounts of salt, which allowed it to be sold widely across the country.^[7]

In Japan mackerel is commonly cured with salt and vinegar to make a type of sushi known as saba-zushi. Historically saba-zushi originated in Kyoto as a solution for transporting mackerel to the inland city, which otherwise would not have made the journey from the coast still fresh.^[8] The road linking Obama bay and Kyoto is now also called "mackerel road" (saba-kaido).

There is a large variation in the mercury levels found in mackerel. These levels differ markedly for different species, and even for the same species in different locations; however, the strongest positive correlation seems to be connected to the species' size (the larger species being higher on the food chain).^[9] According to the United States Food and Drug Administration, king mackerel is one of four fishes, along with swordfish, shark, and tilefish, that children and pregnant women should avoid due to high levels of methylmercury found in these fish and the consequent risk of mercury poisoning.^[10][11]

Gallery

Okhotsk atka mackerel, Japan Rye bread with smoked "pepper mackerel", Denmark Grilled mackerel with dill butter, Sweden Roasted horse-mackerel with fried garlic and pepper, Spain Godeungeo jorim made with mackerel, radish and seasonings, Korea

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Wikimedia Commons has media related to Mackerel dishes.

• Mackerel nutrition facts