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

Tuna - Small

Cold SubsPopular

Medium 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 (2.5g)
Serving Size
2.5 g
Serving Weight
452
Calories
Per serving
19.6 g
Protein
30.3 g
Carbs
28.3 g
Fat

Nutrition Facts

Amount per serving

Calories452 kcal
% Daily Value*
Total Fat 28.3 g36%
Saturated Fat 5.1 g25%
Trans Fat 0 g
Cholesterol 42 mg14%
Sodium 787 mg34%
Total Carbohydrate 30.3 g11%
Dietary Fiber 2 g7%
Total Sugars 5.1 g
Protein 19.6 g39%
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

452
kcal
Protein19.6 g (17%)
Carbs30.3 g (27%)
Fat28.3 g (56%)
Estimated calorie contribution using 4 kcal/g for protein and carbohydrates and 9 kcal/g for fat.

Key Nutrients

Protein 19.6 g39%
Fiber 2 g7%
Sodium 787 mg34%
Sugars 5.1 g
Saturated Fat 5.1 g25%
How we calculate these values

Ingredients

Medium 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.