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Last updated: Aug 9, 2026

Illustration for reference only

Port of Subs

Red Onions

Toppings & Additions - X-Large Subs Ingredients differ among locations and are specified below.Popular

Onion

1.1 Oz (30g)

Serving Size

30 g

Serving Weight

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Calories

Per serving

0.4 g

Protein

2.8 g

Carbs

0 g

Fat

Nutrition Facts

Amount per serving

Calories12 kcal

% Daily Value*

Total Fat 0 g0%

Saturated Fat 0 g0%

Trans Fat 0 g—

Cholesterol 0 mg0%

Sodium 0 mg0%

Total Carbohydrate 2.8 g1%

Dietary Fiber 0.7 g3%

Total Sugars 1.8 g—

Protein 0.4 g1%

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

kcal

Protein0.4 g (11%)

Carbs2.8 g (89%)

Fat0 g (0%)

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

Key Nutrients

Protein 0.4 g1%

Fiber 0.7 g3%

Sodium 0 mg0%

Sugars 1.8 g—

Saturated Fat 0 g0%

How we calculate these values

Ingredients

Onion

Allergens

Contains

Not listed

May contain

Not listed

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