» See also: Fish as food. For the UK band, see Seafood (band).Seafood's any sea animal or plant that's served as food and eaten by humans. Seafoods include seawater animals, such as fish and shellfish (including molluscs and crustaceans). By extension, in North America although not generally in the United Kingdom, the term seafood's also applied to similar animals from fresh water and all edible aquatic animals are collectively referred to as seafood. Edible seaweeds are also seafood, and are w… (More on Seafood)