
Jack in the BoxClassic Buttery Jack
Watch the sat fat & portion. Light on fiber.
1 × 820 cal = 820 cal
Here's what this means for your daily nutrition
Higher in saturated fat. Keep that in mind for the rest of the day.
% Daily Value*
* The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.
Ingredients
Healthier picks at Jack in the Box






Frequently asked questions
Is the Jack in the Box Classic Buttery Jack healthy?
The Jack in the Box Classic Buttery Jack earns a Nom Score of C (61/100). Watch the sat fat & portion. Light on fiber.
How many calories are in the Jack in the Box Classic Buttery Jack?
The Jack in the Box Classic Buttery Jack has 820 calories, with 37g protein, 50g carbs, 12g sugar, and 1150mg sodium.
What is in the Jack in the Box Classic Buttery Jack?
The Jack in the Box Classic Buttery Jack is made from 5 components: Potato Brioche Bun, Beef Hamburger Patty, Lettuce, Tomatoes, Mayonnaise. The full ingredient list for each is shown on this page.
Is the Jack in the Box Classic Buttery Jack gluten-free?
No — the allergen information for the Jack in the Box Classic Buttery Jack lists wheat or gluten.
Does the Jack in the Box Classic Buttery Jack contain artificial additives?
No commonly-flagged additives (such as high-fructose corn syrup, artificial colors, or TBHQ) were found in the Jack in the Box Classic Buttery Jack ingredients.
What is the Nom Score of the Jack in the Box Classic Buttery Jack?
It scores C — moderate. The Nom Score grades every item A–F on nutritional quality per calorie (sodium, sugar, saturated fat, fiber, protein, and portion size).
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Nom. "Classic Buttery Jack Nutrition & Nom Score." Nom, 2026, https://nom.now/jack-in-the-box/jitb-classic-buttery-jack.<a href="https://nom.now/jack-in-the-box/jitb-classic-buttery-jack">Classic Buttery Jack Nutrition & Nom Score — Nom Score</a>