Last updated: Aug 9, 2026
Illustration for reference only
Firehouse Subs

Tuna - Large

Cold SubsPopular

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 PROPIONATE (PRESERVATIVE), VINEGAR, MOLD INHIBITOR (CULTURED WHEAT FLOUR, FERMENTED LACTIC ACID), L-CYSTEINE

1 Sub (7g)
Serving Size
7 g
Serving Weight
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.

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

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

May contain

Not listed

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Nutrition data is sourced from our database and may vary by location or preparation.