What oil does Jack in the Box fry in?
Jack in the Box cooks with canola oil blend — canola, high-oleic canola, soybean (fries, curly fries, fried items).
BMedium Risk — 7.8g avg PUFA/item across 67 items
The 5 cleanest things to order at Jack in the Box
| Fountain Drink | 0.0g PUFA |
| Iced Coffee | 1.0g PUFA |
| Real Fruit Smoothie | 1.0g PUFA |
| Side Salad | 2.0g PUFA |
| Chocolate Shake | 2.0g PUFA |
Lower PUFA is cleaner. These are estimates from published nutrition data and disclosed oils; preparation varies by location.
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 in the Box report card, or where it lands on the Seed Oil Index.