22 July is doyo ushi no hi in JAPAN where Japanese people mostly having Unagi Kabayaki as tradition. People eat broiled eel, or “unagi” on the Midsummer Day of the Ox. Why do people eat eel on these days? It is thought that eating eel on these days gives people stamina and strength to withstand the hottest season of the year. Eel does contain many vitamins that are good for helping the body during the summer, such as vitamins B12, D and E.