Originally Posted by GB
Tempura is not actually sushi. Sushi refers to the rice. A lot of people think sushi is raw fish, but that is not the case. Lots of times sushi does have raw fish, but it can also have cooked fish or no fish at all. As long as it has the short grained seasoned rice that is what makes it sushi.
You're right, tempura has nothing to do with sushi. It's like hamburgers and french fries.
Japanese food in general is quite healthy, but if you're just eating mass amounts of rice, you could still gain weight. Some people do, some people don't. Sushi rice is just rice with some vinegar in it. It can be topped with fish, crab, egg etc or they can come in rolls.
Fish in general is a good way to go if you want to cut back on other meats. Everything in moderation though. Having an all sushi diet wouldn't really work because of all the rice, but I do love sashimi :D