Subway's seafood salad, used to make the sandwich called the Seafood Sensation, is a mix of seafood blended with mayonnaise. As usual, you can customize the sandwich with your own selection of vegetables and condiments. The calorie count and nutritional values here are for the Seafood Sensation salad alone, and not the entire sandwich.

The Seafood Sensation seafood salad from Subway has 190 calories per 71 gram serving, with 150 calories from fat. If you eat 2,000 calories a day, this represents 9.5 percent of your daily calorie intake.

The seafood salad contains 16g of total fat. The fat includes 2.5g of saturated fat. If you eat 2,000 calories a day, you should attempt to limit fat intake to no more than 65g per day, because a diet high in fat can contribute to obesity and related health conditions, the USDA warns.

Subway's Seafood Sensation salad contains 430mg of sodium, a total that represents 17.9 percent of the maximum recommended daily intake, Subway reports in its Nutritional Values.

The seafood salad portion used on a six-inch sub has 7g of total carbohydrates. The carbohydrate breakdown includes 1g of sugars, but it contains no dietary fiber.

The seafood and mayonnaise in the salad bolster its protein content. The Seafood Sensation salad has 5g of protein, Subway reports.