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Big Jack
Big Jack at Jack's (US) has 530 kcal per stated portion, with 23.0 g protein and 33.0 g fat.
| Per portion | Per 100 g | |
|---|---|---|
| Energy | 530 kcal | — |
| Protein | 23.0 g | — |
| Carbohydrate | 35.0 g | — |
| of which sugars | not in the source | — |
| Fat | 33.0 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 94 minutes of brisk walking or 49 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 27% 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's (US) nutrition as listed by FatSecret US · checked 2026-09-23
Similar items on this menu
Double Cheese Burger
540 kcal per portion
Double Cheeseburger
540 kcal per portion
Sausage Biscuit
480 kcal per portion
Steak Biscuit
480 kcal per portion
Chicken Biscuit
470 kcal per portion
Big Bacon
610 kcal per portion
All Jack's (US) items · All chains · Estimate any menu
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