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What oil does Jack's fry in?

Jack's cooks with soybean oil.

In detail: soybean oil.

Ordering at Jack's? Build your meal in the app and see its seed oil total before you pay.

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Jack's at a glance

Fry oil (US)Soybean oil
Seed oilsYes
Beef tallowNo
Peanut oilNo
Seed oil gradeD (8.6 g average per item, 110 items)
Is it a seed oil?Soybean oil: Yes
DVery High Risk: 8.6g avg PUFA/item across 110 items

The 5 cleanest things to order at Jack's

Learn this once: a salad with grilled protein and the dressing left off is nearly always the lowest seed oil order anywhere. So the list below sticks to real meals, salads included, never just a water.

ItemPUFA
Grilled Chicken Salad4.0g
Breakfast Wrap (Bacon)4.7g
Breakfast Wrap (Sausage)5.5g
Regular Hamburger6.5g
Cheeseburger6.8g

Lower PUFA is cleaner. These are estimates from published nutrition data and disclosed oils; preparation varies by location.

Build your Jack's order

Pick your meal, sides, sauces and drink in the app and see your seed oil total before you order. It logs to your day in one tap. Free on iPhone and Android.

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Why the frying oil matters

Most fast-food chains fry in seed oils like soybean, canola, corn, or a blend of them, which are high in polyunsaturated fat (PUFA). A handful still use beef tallow or other stable fats, which are far lower in PUFA. The oil a kitchen fries in is the single biggest driver of how much seed oil ends up on your plate. See the full breakdown on the Jack's report card, or where it lands on the Seed Oil Index. See which chains fry in real fats on Tallow Watch.

Frequently asked

What oil does Jack's fry in?

Jack's cooks with soybean oil. In detail: soybean oil.

Does Jack's use seed oils?

Yes. Jack's cooks with soybean oil. Its seed oil grade is D, about 8.6 g of polyunsaturated fat per menu item.

Does Jack's use beef tallow?

No. Jack's cooks with soybean oil, not beef tallow.

Does Jack's use peanut oil?

Not that we can find. Jack's cooks with soybean oil. If you have a peanut allergy, ask the restaurant directly, because oils and suppliers can vary by location.

What is the lowest seed oil order at Jack's?

Grilled Chicken Salad (4.0 g of polyunsaturated fat). Next: Breakfast Wrap (Bacon) (4.7 g) and Breakfast Wrap (Sausage) (5.5 g).

Which Jack's item has the most seed oil?

Coleslaw Large, at about 44.4 g of polyunsaturated fat as listed.

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