There has always been a debate on the topic of sushi and how good (or bad) it is for you to eat. Allow us to pinpoint each side of the argument, reference some of our research on the subject, and add our two cents.
The Good
Sushi is usually a light meal. Whenever you partake in a meal that requires the use of difficult utensils and must eat a piece of something at a time, you will eat slower, and ultimately feel full quicker. On top of that, most rolls are packed with some sort of protein inside so the protein to calorie ratio is often high.
The Bad
The only REAL argument that sushi haters ever have is that you can get sick from eating raw fish. While this is an understandable fear for many, the same can go for any other type of food, especially proteins. The other less common issue people have is when they eat tempura (fried) ingredients or too much cream cheese, which is high in fat.
What We Found
According to ExtremeBodyWorkout.com, sushi is a very healthy meal for the body. Here is an excerpt from an article we read.
Sushi is usually an extremely healthy choice. It is commonly low fat and low in calories. Although abundant in rice, you can choose to eat sashimi without the rice if you are concerned about the added white carbs. Many varieties of sushi are a great source of Omega 3s. There are unhealthy sushi options as well though, so be sure to steer clear of fried tempura and sushi selections that include dumplings, cream cheese and other fattening items.
http://www.extremebodyworkout.com/blog/2009/06/07/is-sushi-healthy/
Our Two Cents
Unless you're eating at a sushi restaurant that lacks a reputation, you need not worry about the quality of the fish you are eating.
If you are wanting an "extremely" healthy sushi meal, stay away from tempura, mayo, cream cheese, and any rolls that are topped with a cream-based sauce of some kind.
Other than that, there is no question that enjoying a sushi meal should be guilt-free. It's a fun and healthy way to experience delicious ethnic food.