Sushi or sushi is a typical Japanese food consisting of rice formed with side dishes in the form of seafood, meat, raw or cooked vegetables, sushi has a soft sour taste because it has been seasoned with a mixture of rice vinegar, salt, and sugar. The origin of the word sushi is an adjective for sour taste written in kanji and is a term for a type of fish preservation called gyoso. Anyone curious about the taste?