A rough caloric average of a single nigiri sushi is about 35 calories, 1 gram of protein, 4 grams of carbohydrates, 0.3 grams of unsaturated fat, 0.03 grams of unsaturated fat, and 0.05 grams of sodium. Multiply that by 10 and that will be an average sushi meal. The only thing that is lacking in sushi is fiber.