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Last updated: Aug 12, 2026

Which Wich

BYO Large Tuna Melt

BYO Seafood on White BreadPopular

Which Wich BYO Large Tuna Melt is fat-leaning, with about 47% of macro calories from fat. Each serving has 1,040 calories, 52g protein, 84g carbs, and 54g fat, making it better suited to carb-aware planning than low-carb goals.

1 Serving

Serving Size

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1,040

Calories

Per serving

52 g

Protein

84 g

Carbs

54 g

Fat

Nutrition Facts

Amount per serving

Calories1,040 kcal

% Daily Value*

Total Fat 54 g69%

Saturated Fat 16 g80%

Trans Fat 0 g—

Cholesterol 135 mg45%

Sodium 1,850 mg80%

Total Carbohydrate 84 g31%

Dietary Fiber 0 g0%

Total Sugars 5 g—

Protein 52 g104%

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

1,040

kcal

Protein52 g (20%)

Carbs84 g (33%)

Fat54 g (47%)

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

Meal Planning Insights

Protein density5/10

20% of macro calories come from protein.

Satiety index10/10

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

Activity estimate260 min walk

About 104 minutes of running for these calories.

Key Nutrients

Protein 52 g104%

Fiber 0 g0%

Sodium 1,850 mg80%

Sugars 5 g—

Saturated Fat 16 g80%

How we calculate these values

Diet Compatibility

High protein5/10 protein density from 52g protein and 1,040 calories.Yes

Lower carb84g carbs per serving.No

Low fat54g total fat per serving.No

High sugar5g total sugars per serving.No

High sodium1,850mg sodium per serving.Yes

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

Compare with other items

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Quick comparisons

BYO Large Tuna Melt has 960 more calories than 1000 Island, Large and 52g more protein. Compare

BYO Large Tuna Melt has 990 more calories than 1000 Island, Regular and 52g more protein. Compare

1000 Island, Large80 kcal · 0 g protein1000 Island, Regular50 kcal · 0 g protein1000 Island, Super100 kcal · 0 g proteinAmerican Cheese, Large150 kcal · 7 g proteinAmerican Cheese, Regular100 kcal · 5 g proteinAmerican Cheese, Super200 kcal · 10 g protein

Compare with 1000 Island, Large

BYO Large Tuna Melt Compared With Nearby Items

Which Wich BYO Large Tuna Melt is listed in the BYO Seafood on White Bread category with 1,040 calories, 52g protein, 84g carbs, and 54g fat per serving.

Data Source and Methodology

Nutrition values for BYO Large Tuna Melt 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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