The main ingredient in sushi is vinegared rice, known as "sushi rice" or "shari." This rice is usually short-grain, sticky, and seasoned with a mixture of vinegar, sugar, and salt, giving it a distinctive flavor that complements the other ingredients in sushi. Sushi can be made with various fillings and toppings such as raw or cooked fish, vegetables, and seaweed. While sushi is synonymous with seafood in many contexts, there are numerous vegetarian and vegan variations, making it a versatile dish enjoyed by people worldwide.