Jack's Seed Oil Report Card
Based on our menu research, Jack's cooks with: soybean oil. Across the 73 menu items we analyzed, it averages 7.2g estimated PUFA per item, earning a seed-oil grade of B (Medium Risk).
Safest Orders at Jack's
| Soft Drink Small | 0.0g PUFA |
| Soft Drink Medium | 0.0g PUFA |
| Soft Drink Large | 0.0g PUFA |
| Sweet Tea | 0.0g PUFA |
| Unsweet Tea | 0.0g PUFA |
What to Avoid at Jack's
| 10-Piece Chicken Fingers | 35.0g PUFA |
| 3-Piece Fried Chicken Dinner | 20.0g PUFA |
| 5-Piece Chicken Fingers Dinner | 20.0g PUFA |
| Double Jack Burger | 19.0g PUFA |
| Bacon Cheeseburger | 15.0g PUFA |
Frequently asked
Does Jack's use seed oils?
Based on our menu research, Jack's cooks with: soybean oil. Across the 73 menu items we analyzed, it averages 7.2g estimated PUFA per item, earning a seed-oil grade of B (Medium Risk).
What oil does Jack's cook with?
Our research indicates: soybean oil. Preparation can vary by location, so treat PUFA numbers as estimates.
Does Jack's use beef tallow?
No. Our research indicates Jack's cooks with soybean oil, not beef tallow. For chains that fry in tallow or other real fats, see Tallow Watch.
Is Jack's seed oil free?
No. Our research indicates Jack's cooks with soybean oil, which includes seed oils. See the lower-PUFA orders above for the cleanest picks.
What is the safest thing to order at Jack's?
Soft Drink Small is the lowest-PUFA item we analyzed at Jack's, at an estimated 0.0g PUFA. See the Safest Orders list on this page for more options.
What should I avoid at Jack's?
10-Piece Chicken Fingers is the highest-PUFA item we analyzed at Jack's, at an estimated 35.0g PUFA. Fried items and creamy, mayo-based sauces are usually the heaviest.
What are seed oils?
Seed oils — canola, soybean, sunflower, corn, and similar vegetable oils — are extracted from seeds using high heat and chemical solvents. They are very high in polyunsaturated fats (PUFAs), which are unstable at cooking temperatures and can oxidize easily. Many health-conscious eaters choose to minimize seed oils and prefer foods cooked in beef tallow, butter, coconut oil, or olive oil instead. This page shows estimated PUFA grams per menu item to help you make more informed choices. These are estimates — actual values vary by preparation and location. Curious why people avoid them? Read the evidence.
Compare other chains
Ivar's · JJ Fish & Chicken · Jack in the Box · Jamba · James Coney Island · Jason's Deli
See where Jack's lands on the full Seed Oil Index, or check which chains cook in real fats on Tallow Watch.