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Last updated: Aug 9, 2026

Burger 21

Yellow Mustard

SaucesPopular

Burger 21 Yellow Mustard is fat-leaning, with about 40% of macro calories from fat. Each serving has 0 calories, 1.2g protein, 1.9g carbs, and 0.9g fat, making it a lighter restaurant option to compare with larger meals.

1 oz

Serving Size

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Calories

Per serving

1.2 g

Protein

1.9 g

Carbs

0.9 g

Fat

Nutrition Facts

Amount per serving

Calories0 kcal

% Daily Value*

Total Fat 0.9 g1%

Saturated Fat 0.1 g1%

Trans Fat 0 g—

Cholesterol 0 mg0%

Sodium 319 mg14%

Total Carbohydrate 1.9 g1%

Dietary Fiber 0.9 g3%

Total Sugars 0 g—

Protein 1.2 g2%

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

Protein1.2 g (23%)

Carbs1.9 g (37%)

Fat0.9 g (40%)

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

Meal Planning Insights

Protein density0/10

23% of macro calories come from protein.

Satiety index4.2/10

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

Activity estimate1 min walk

About 1 minutes of running for this calorie total.

Key Nutrients

Protein 1.2 g2%

Fiber 0.9 g3%

Sodium 319 mg14%

Sugars 0 g—

Saturated Fat 0.1 g1%

How we calculate these values

Diet Compatibility

High protein0/10 protein density from 1.2g protein and 0 calories.No

Lower carb1.9g carbs per serving.Yes

Low fat0.9g total fat per serving.Yes

High sugar0g total sugars per serving.No

High sodium319mg sodium per serving.No

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

Similar Items in Sauces

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21 Sauce70 kcal · 0 g protein

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

Quick comparisons

Yellow Mustard has 721 fewer calories than 101 Burger and 33.8g less protein. Compare

Yellow Mustard has 1006 fewer calories than 101 Dog Combo and 26.8g less protein. Compare

101 Burger721 kcal · 35 g protein101 Dog Combo1,006 kcal · 28 g protein21 Sauce70 kcal · 0 g proteinAdd Avocado Slices42 kcal · 0.6 g proteinAdd Bacon68 kcal · 4.5 g proteinAdd Beef Patty427 kcal · 29 g protein

Compare with 101 Burger

Yellow Mustard Compared With Nearby Items

Compared with 21 Sauce, another Sauces item at Burger 21, Yellow Mustard has 70 fewer calories than it and 1.2g more 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 Yellow Mustard 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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