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Classic Buttery Jack
Classic Buttery Jack at Jack in the Box (US) has 780 kcal per stated portion, with 31.0 g protein and 51.0 g fat.
| Per portion | Per 100 g | |
|---|---|---|
| Energy | 780 kcal | — |
| Protein | 31.0 g | — |
| Carbohydrate | 51.0 g | — |
| of which sugars | not in the source | — |
| Fat | 51.0 g | — |
| of which saturates | not in the source | — |
| Fibre | not in the source | — |
| Salt | not in the source | — |
What that costs in movement
At 75 kg, this item is roughly 138 minutes of brisk walking or 72 minutes of easy running. That is an energy comparison and nothing more: eating less and moving more are not interchangeable, and neither figure accounts for what your body would have burned anyway.
Against a 2 000 kcal day it is about 39% of the day's energy.
These figures come from FatSecret US, not from the chain itself, and may lag its current menu. What lands on your tray varies with the branch, the build and the day.
Source: Jack in the Box (US) nutrition as listed by FatSecret US · checked 2026-09-22
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Bacon & Swiss Buttery Jack
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Sourdough Breakfast Sandwich
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All Jack in the Box (US) items · All chains · Estimate any menu
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