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Last updated: Aug 12, 2026

Thundercloud Subs

Tuna, Small

Classic SubsPopular

Thundercloud Subs Tuna, Small is fat-leaning, with about 57% of macro calories from fat. Each serving has 575 calories, 23g protein, 35g carbs, and 34g fat, making it worth balancing with lower-fat items in the same meal.

1 serving

Serving Size

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575

Calories

Per serving

23 g

Protein

35 g

Carbs

34 g

Fat

Nutrition Facts

Amount per serving

Calories575 kcal

% Daily Value*

Total Fat 34 g44%

Saturated Fat 8 g40%

Trans Fat 0 g—

Cholesterol 69 mg23%

Sodium 903 mg39%

Total Carbohydrate 35 g13%

Dietary Fiber 0 g0%

Total Sugars 0 g—

Protein 23 g46%

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

575

kcal

Protein23 g (17%)

Carbs35 g (26%)

Fat34 g (57%)

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

Meal Planning Insights

Protein density4/10

17% of macro calories come from protein.

Satiety index10/10

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

Activity estimate144 min walk

About 58 minutes of running for these calories.

Key Nutrients

Protein 23 g46%

Fiber 0 g0%

Sodium 903 mg39%

Sugars 0 g—

Saturated Fat 8 g40%

How we calculate these values

Diet Compatibility

High protein4/10 protein density from 23g protein and 575 calories.No

Lower carb35g carbs per serving.No

Low fat34g total fat per serving.No

High sugar0g total sugars per serving.No

High sodium903mg sodium per serving.Yes

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

Similar Items in Classic Subs

View all

American Classic, Large438 kcal · 20 g protein American Classic, Small307 kcal · 13 g protein Avocado, Large391 kcal · 8 g protein Avocado, Small301 kcal · 6 g protein

Compare with other items

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

Quick comparisons

Tuna, Small has 530 more calories than American Cheese and 21g more protein. Compare

Tuna, Small has 137 more calories than American Classic, Large and 3g more protein. Compare

American Cheese45 kcal · 2 g proteinAmerican Classic, Large438 kcal · 20 g proteinAmerican Classic, Small307 kcal · 13 g proteinAustin Club Salad (with Egg & Cheese)462 kcal · 30 g proteinAustin Club, Large662 kcal · 33 g proteinAustin Club, Small487 kcal · 27 g protein

Compare with American Cheese

Tuna, Small Compared With Nearby Items

Compared with Blt, Large, another Classic Subs item at Thundercloud Subs, Tuna, Small has 7 more calories than it and 5g less protein than it. That makes this page useful for deciding between nearby menu choices, not just reading a raw nutrition label.

Data Source and Methodology

Nutrition values for Tuna, Small are maintained in Nutrimetry from restaurant-published menu data and were last checked on Aug 12, 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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