I love eating sushi, but what exactly is sushi anyway/  Is it just raw fish?
Yes but I believe it have to be very fresh and they use rice and other ingredients too.
Sushi
Sushi is traditionally made with medium-grain white rice, though it can be prepared with brown rice or short-grain rice. It is very often prepared with seafood, such as squid, eel, yellowtail, salmon, tuna or imitation crab meat. Many types of sushi are vegetarian. It is often served with pickled ginger ("gari"), wasabi, and soy sauce. Daikon radish or pickled daikon ("takuan") are popular garnishes for the dish.
"Sushi" is sometimes
a feature of almost all the cuisines of the world, providing an important source of protein in many cuisines around the world, especially in the countries with coastal areas.
Shellfish in various cuisines In Japan.
In the Japanese cuisine, chefs often use shellfish and their roe in different dishes. Sushi (vinegared rice, topped with other ingredients, including shellfish, fish, meat and vegetables) features both raw and cooked shellfish. Sashimi primarily consists of very fresh raw seafood, sliced into thin pieces. Both sushi and sashimi