For example, the top sushi roll in our list is kappa maki (cucumber roll), which is lower in calories but also low in protein and fats, which may not be as filling as other more calorie-dense rolls.

One small fried fish stick, for instance, has about 140 calories alone. A full avocado or cucumber sushi roll consisting of six to eight pieces has only 135 calories. "Sushi is a far healthier ...

This made it a reliable source of calories and protein ... of Japanese principles in sushi. At its core, the rainbow roll is just a California roll — cucumber, avocado, and imitation crab ...