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Sonic Pepsi Zero Sugar: nutrition and allergens

Sonic lists the Pepsi Zero Sugar in 5 sizes, all at 0 calories. Sonic gives the same values for every size, so they describe one serving, not the whole order. The Wacky Pack! has 0 g fat, 0 g carbohydrate, 0 g protein and 40 mg sodium.

Values converted by script from official files; text drafted with AI assistance From Sonic’s nutrition information Last checked How pages are made
Glass of fizzy cola with ice cubes against a dark background
Illustrative photo, not Sonic’s product · Pexels · About our photos

Nutrition facts

Pepsi Zero Sugar nutrition facts by size
Per servingWacky Pack!SmallMediumLargeRT 44
Calories 00000
Total fat (g) 0 0%0 0%0 0%0 0%0 0%
Saturated fat (g) 0 0%0 0%0 0%0 0%0 0%
Trans fat (g) 00000
Cholesterol (mg) 0 0%0 0%0 0%0 0%0 0%
Sodium (mg) 40 2%65 3%80 3%130 6%180 8%
Total carbohydrate (g) 0 0%0 0%0 0%0 0%0 0%
Dietary fiber (g) 0 0%0 0%0 0%0 0%0 0%
Total sugars (g) 00000
Protein (g) 0 0%0 0%0 0%0 0%0 0%

Percentages are the share of the FDA Daily Value for adults and children 4 and over, worked out from Sonic’s published amounts (how % Daily Value works). A dash means Sonic does not publish that value for this size. Not published for this item: added sugars.

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, the Wacky Pack! size is low in sodium, fat, saturated fat, cholesterol, carbohydrate, dietary fiber and protein. Add it up with other items in the Sonic nutrition calculator.

Optional item that may not be available at all locations.

Allergens

Sonic’s allergen information lists none of the allergens it reports for the Pepsi Zero Sugar.

Allergens reported by Sonic for the Pepsi Zero Sugar
MilkNot listed
EggNot listed
FishNot listed
Crustacean shellfishNot listed
Tree nutsNot listed
PeanutsNot listed
WheatNot listed
SoyNot listed
SesameNot listed
GlutenNot listed

Sonic relies on its suppliers for allergen information and shares cooking and preparation areas, so it says it cannot rule out cross-contact or promise that any item is free of an allergen, and no item is certified gluten-free, vegetarian or vegan. Blended drinks and frozen desserts share tools, fried foods share fryers, and grilled items share the grill. Buns, Texas Toast, eggs, grilled onions and grilled peppers are cooked with a bun oil that contains soy. Some breads come from local bakeries, so ingredients and allergens such as sesame can differ by restaurant. Tell your carhop about any food allergy before ordering. Items marked as fried carry a risk of cross-contact with all allergens.

Filter the whole Sonic menu by allergen

Other items in Soft Drinks at Sonic

By calories (Wacky Pack!), the Pepsi Zero Sugar ranks 5 of 25 in Sonic’s Soft Drinks section, from lowest to highest. The table shows the 9 items nearest to it; each item is compared at its first listed size.

Nearby items in Soft Drinks at Sonic by calories
ItemCalories
Coca-Cola Zero SugarWacky Pack! 0
Diet CokeWacky Pack! 0
Diet Dr PepperWacky Pack! 0
Diet Mountain DewWacky Pack! 0
Pepsi Zero SugarWacky Pack! 0
Sprite Zero SugarWacky Pack! 0
Powerade Mountain BlastWacky Pack! 35
Lemon-Lime GatoradeWacky Pack! 50
Dr PepperWacky Pack! 60

Nutrition for all 25 items in Soft Drinks at Sonic

Browse the Sonic menu by goal: high-protein items · low-calorie items

Sources

  1. 1
    Sonic, Sonic Nutritional Information brochure (national) Covers nutrition and menu · Summer 2026 · Checked 8 Oct 2026
  2. 2
    Sonic, Sonic Allergen Information guide Covers allergens · National Summer 2026 Allergen Guide · Checked 8 Oct 2026

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