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Last updated: Aug 9, 2026

Firehouse Subs

Tuna - Large

Cold SubsPopular

Firehouse Subs Tuna - Large is fat-leaning, with about 56% of macro calories from fat. Each serving has 1,543 calories, 71.1g protein, 103.1g carbs, and 96.9g fat, making it better suited to carb-aware planning than low-carb goals.

1 Sub (7g)

Serving Size

7 g

Serving Weight

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1,543

Calories

Per serving

71.1 g

Protein

103.1 g

Carbs

96.9 g

Fat

Nutrition Facts

Amount per serving

Calories1,543 kcal

% Daily Value*

Total Fat 96.9 g124%

Saturated Fat 17.7 g88%

Trans Fat 0 g—

Cholesterol 151 mg50%

Sodium 2,774 mg121%

Total Carbohydrate 103.1 g38%

Dietary Fiber 6.2 g22%

Total Sugars 19.3 g—

Protein 71.1 g142%

Vitamin A—

Vitamin C—

Vitamin D—

Calcium—

Iron—

Potassium—

Caffeine—

* The % Daily Value tells you how much a nutrient in a serving contributes to a daily diet.

Nutrition Breakdown

1,543

kcal

Protein71.1 g (18%)

Carbs103.1 g (26%)

Fat96.9 g (56%)

Estimated calorie contribution using 4 kcal/g for protein and carbohydrates and 9 kcal/g for fat.

Meal Planning Insights

Protein density4.6/10

18% of macro calories come from protein.

Satiety index10/10

Estimated from protein, fiber, calories, and fat balance.

Activity estimate386 min walk

About 154 minutes of running for these calories.

Key Nutrients

Protein 71.1 g142%

Fiber 6.2 g22%

Sodium 2,774 mg121%

Sugars 19.3 g—

Saturated Fat 17.7 g88%

How we calculate these values

Diet Compatibility

High protein4.6/10 protein density from 71.1g protein and 1,543 calories.No

Lower carb103.1g carbs per serving.No

Low fat96.9g total fat per serving.No

High sugar19.3g total sugars per serving.No

High sodium2,774mg sodium per serving.Yes

Vegetarian source flagNo vegetarian flag is published for this item.Not flagged

Ingredients

Large White Sub Roll: ENRICHED WHEAT FLOUR (WHEAT FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID), MALTED BARLEY FLOUR, WATER, SUGAR, YEAST, SOYBEAN OIL, SALT, WHEAT GLUTEN, DOUGH CONDITIONER (ASCORBIC ACID, ENZYMES), CALCIUM…

Allergens

Contains

WheatMilkEggSoy

Compare with other items

Select up to 3 items to compare calories, protein, sodium, and macros.

Quick comparisons

Tuna - Large has 1393 more calories than 1% Chocolate Milk and 64.1g more protein. Compare

Tuna - Large has 1453 more calories than 1% Milk and 64.1g more protein. Compare

1% Chocolate Milk150 kcal · 7 g protein1% Milk90 kcal · 7 g protein5-Cheese Mac & Cheese380 kcal · 17 g proteinApple Juice100 kcal · 0 g proteinAu Jus Bell Peppers5 kcal · 0.2 g proteinAu Jus Bell Peppers3 kcal · 0.1 g protein

Compare with 1% Chocolate Milk

Tuna - Large Compared With Nearby Items

Firehouse Subs Tuna - Large is listed in the Cold Subs category with 1,543 calories, 71.1g protein, 103.1g carbs, and 96.9g fat per serving.

Data Source and Methodology

Nutrition values for Tuna - Large are maintained in Nutrimetry from restaurant-published menu data and were last checked on Aug 9, 2026. Macro percentages use 4 calories per gram for protein and carbohydrates and 9 calories per gram for fat.

Read the data methodology

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