Subway Mustard, Yellow: nutrition and allergens
The Mustard, Yellow at Subway has 10 calories, 1 g fat, 1 g carbohydrate, 0 g protein and 170 mg sodium per serving (14 g), according to Subway’s nutrition information.
Nutrition facts
| Serving size | 14 g |
|---|---|
| Calories | 10 |
| Total fat (g) | 1 1% |
| Saturated fat (g) | 0 0% |
| Trans fat (g) | 0 |
| Cholesterol (mg) | 0 0% |
| Sodium (mg) | 170 7% |
| Total carbohydrate (g) | 1 0% |
| Dietary fiber (g) | 0 0% |
| Total sugars (g) | 0 |
| Added sugars (g) | 0 0% |
| Protein (g) | 0 0% |
| Vitamin A | 0% DV |
| Vitamin C | 0% DV |
| Calcium | 0% DV |
| Iron | 2% DV |
Percentages are the share of the FDA Daily Value for adults and children 4 and over, worked out from Subway’s published amounts (how % Daily Value works). A dash means Subway does not publish that value for this item.
Using the FDA’s rule of thumb that 5% of the Daily Value or less per serving is low and 20% or more is high, one serving is low in fat, saturated fat, cholesterol, carbohydrate, dietary fiber, added sugars and protein. Add it up with other items in the Subway nutrition calculator.
Allergens
Subway’s allergen information lists none of the allergens it reports for the Mustard, Yellow.
| Milk | Not listed |
|---|---|
| Egg | Not listed |
| Fish | Not listed |
| Crustacean shellfish | Not listed |
| Tree nuts | Not listed |
| Peanuts | Not listed |
| Wheat | Not listed |
| Soy | Not listed |
| Sesame | Not listed |
Allergens from the allergen chart row "Mustard (Yellow)".
Subway builds its allergen chart from information supplied by its approved manufacturers and warns that recipes can change before the chart is updated; some regional and promotional items are not covered. Ingredients can touch each other during preparation, which the chart does not show, so guests with a food allergy should tell the sandwich artist. Wheat and gluten share one column because every gluten-containing Subway item contains wheat. Cookies may contact nut-containing cookies because of how they are displayed. Items marked as containing only highly refined oil from an allergen source are exempt from FDA allergen labeling. The gluten-free bread is made in a gluten-free facility, but other items containing gluten share equipment in the restaurant, so Subway cannot guarantee any item is entirely gluten-free. The chart also flags sulfites and added nitrites/nitrates.
Other items in Sauces and condiments at Subway
By calories, the Mustard, Yellow ranks 3 of 15 in Subway’s Sauces and condiments section, from lowest to highest. The table shows the 9 items nearest to it; each item is compared at its first listed size.
| Item | Calories |
|---|---|
| Frank's RedHot Buffalo Sauce | 0 |
| Red Wine Vinegar | 0 |
| Mustard, Yellow | 10 |
| BBQ Sauce | 25 |
| Hot Honey Sauce | 30 |
| Sweet Onion Teriyaki | 30 |
| Olive Oil Blend | 45 |
| Olive Oil Blend & Vinegar | 45 |
| Honey Mustard | 60 |
Nutrition for all 15 items in Sauces and condiments at Subway
Browse the Subway menu by goal: high-protein items · low-calorie items · low-carb items
Sources
- 1 Subway, U.S. Nutrition Information Covers nutrition and menu · October 2026 · Checked 8 Oct 2026
- 2 Subway, U.S. Allergy and Sensitivity Information Covers allergens · October 2026 · Checked 8 Oct 2026
Spotted a value that differs from the chain’s current information? Report it