Unagi is the Japanese word for freshwater eel, especially the Japanese eel, Anguilla japonica . Unagi is a common ingredient in Japanese cooking.
Unagi is served as part of unadon (sometimes spelled unagidon, especially in menus in Japanese restaurants in Western countries), a donburi dish with sliced eel served on a bed of rice. A kind of sweet biscuit called unagi pie made with powdered unagi also exists.[2] Unagi is high in protein, vitamin A, and calcium.[citation needed]