Of all the foods I can think of, sushi is probably the healthiest. If you haven't already tasted it, do yourself a favor and get a box of fresh sushi (not older than 6 hours). It was recently found that Ogimi, an island in Japan has the highest number of centenarians (people over 100) per capita in the world. Most of the island's inhabitants credit their sushi heavy diet as the secret of their longevity. This shouldn't come as a surprise to anyone. Sushi is the ultimate health food:
Rice - Rice is an excellent complex carbohydrate. It provides great energy and it fills you up quickly so overeating isn't much of a problem
Vegetables - It doesn't take a nutritionist to tell you that vegetables are healthy for you. They're full of vitamins and minerals.
Seaweed - One of the best things you can eat in the whole sushi roll is the seaweed. It contains almost all the minerals you need in your diet including, sodium, magnesium and zinc.
Raw fish - Raw fish is full of omega-3 and that has countless benefits. Omega-3 fatty acids, among other things, reduce the risk of heart disease, prevent varicose veins and lower cholesterol.
What you won't find in sushi is tons of salt, saturated fat or cholesterol. That's the second half of its secret.
Occasionally, someone will tell me that eating raw fish is gross. You know what I think is gross? Getting 85% of your RDI* of saturated fat from eating a sundae (DQ Peanut Buster), getting 60% of your RDI of sodium from a sandwich (Double Quarter Pounder w/ Cheese) and getting 55% of your sodium intake from a single chicken thigh (KFC original recipe thigh).
*Recommended Daily Intake (based on a 2,000 calorie diet)