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Last updated: Aug 9, 2026
Del Taco

Mello Yello (Large)

Fountain DrinksPopular

Del Taco Mello Yello (Large) is carb-leaning, with about 100% of macro calories from carb. Each serving has 390 calories, 0g protein, 109g carbs, and 0g fat, making it better suited to carb-aware planning than low-carb goals.

1 serving
Serving Size
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390
Calories
Per serving
0 g
Protein
109 g
Carbs
0 g
Fat

Nutrition Facts

Amount per serving

Calories390 kcal
% Daily Value*
Total Fat 0 g0%
Saturated Fat 0 g0%
Trans Fat 0 g—
Cholesterol 0 mg0%
Sodium 125 mg5%
Total Carbohydrate 109 g40%
Dietary Fiber 0 g0%
Total Sugars 109 g—
Protein 0 g0%
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

390
kcal
Protein0 g (0%)
Carbs109 g (100%)
Fat0 g (0%)
Estimated calorie contribution using 4 kcal/g for protein and carbohydrates and 9 kcal/g for fat.

Meal Planning Insights

Protein density0/10

0% of macro calories come from protein.

Satiety index0.8/10

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

Activity estimate98 min walk

About 39 minutes of running for these calories.

Key Nutrients

Protein 0 g0%
Fiber 0 g0%
Sodium 125 mg5%
Sugars 109 g—
Saturated Fat 0 g0%
How we calculate these values

Diet Compatibility

High protein0/10 protein density from 0g protein and 390 calories.No
Lower carb109g carbs per serving.No
Low fat0g total fat per serving.Yes
High sugar109g total sugars per serving.Yes
High sodium125mg sodium per serving.No
Vegetarian source flagNo vegetarian flag is published for this item.Not flagged

Similar Items in Fountain Drinks

View all
Barq's Root Beer (Large)370 kcal · 0 g proteinBarq's Root Beer (Regular)300 kcal · 0 g protein

Compare with other items

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

Quick comparisons

Mello Yello (Large) has 60 more calories than 3 Layer Queso Nachos and 10g less protein. Compare

Mello Yello (Large) has 330 fewer calories than 3 Pc. Crispy Chicken & Fries Box (Chipotle Dipping Sauce) and 18g less protein. Compare

Compare with 3 Layer Queso Nachos

Mello Yello (Large) Compared With Nearby Items

Compared with Barq's Root Beer (Large), another Fountain Drinks item at Del Taco, Mello Yello (Large) has 20 more calories than it and the same protein as 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 Mello Yello (Large) are maintained in Nutrimetry from restaurant-published menu data and were last checked on Aug 9, 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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