Fish sauce is a traditional seasoning, and is produced by fermenting
fish under high sodium chloride (NaCl) concentrations
for 1–2 years. It is mainly produced and consumed in southeast
Asian provinces such as Nampla in Thailand, Noucnam in Vietnam,
Shotturu and Ishiru in Japan, Patis in the Philippines, Budu in
Malaysia, Ketjapikan and Bakasang in Indonesia, Toeuk Trey in
Cambodia, Yuilu in China, and Ngapi in Myanmar. Fish sauce is
added to various foods for its complex and characteristic taste. It
contains large quantities of free amino acids and peptides