Sushi Is a Japanese dish of prepared vinegared rice, usually with some sugar and salt, plus a variety of ingredients, such as vegetables, and any meat, but most commonly seafood. Styles of sushi and its presentation vary widely, but the one key ingredient is "sushi rice", also referred to as shari, or sumeshi. Sushi often contains fish, which is a great source of lean protein, omega-3 fatty acids, vitamins, and minerals like iodine. Additionally, it typically includes rice, which provides carbohydrates for energy.