White tuna

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White tuna is a term that may apply to two different species eaten in Japanese cuisine:

  • Albacore tuna, Thunnus alalunga - the pale-fleshed tuna favoured by the canning industry, also known as shiro maguro, bin-naga maguro, or bincho maguro
  • Escolar, Lepidocybium flavobrunneum - which is a snake mackerel, not a tuna. It has been banned in some countries, including Japan, because of the laxative effect of the wax esters in its flesh.

"Super white tuna" refers to escolar, not albacore.