Fish sauce sandfish. "Ikanago shoyu" of Kagawa Prefecture is made from sand lance. They are often reserved for the preparation of "nabemono". In Korea, fish sauce is called "eojang" (). Across the Korean Peninsula, "aekjeot" (, literally "liquid "jeotgal""), a type of fish sauce usually made from fermented anchovies or sand lances, is used as a crucial ingredient in many types of kimchi, both for taste and fermentation. In Jeju island, "eoganjang" (), made of fermented "godori" (young chub mackerels) or horse mackerels, is used in place of soy sauce. Colatura di Alici is an Italian fish sauce. Worcestershire sauce contains fermented
Fish sauce "kecap" in Indonesia might be the precursor of ketchup. By 50–100 BC, demand for fish pastes in China had fallen drastically, with fermented bean products having become a major trade commodity. Fish sauce, however, developed massive popularity in Southeast Asia. Food scholars traditionally divide East Asia into two distinct condiment regions, separated by a bean-fish divide: Southeast Asia, mainly using fermented fish (Vietnam, Thailand, Cambodia) and Northeast Asia, using mainly fermented beans (China, Korea, Japan). Fish sauce re-entered China in the 17th and 18th centuries, brought from Vietnam and Cambodia by Chinese traders up the coast of the southern provinces