In-N-Out Burger Seed Oil Report Card
Source: In-N-Out Nutrition Information, January 2026. Potatoes prepared fresh in 100% sunflower oil.
Based on our menu research, In-N-Out Burger cooks with: sunflower oil. Across the 38 menu items we analyzed, it averages 5.0g estimated PUFA per item, earning a seed-oil grade of B (Medium Risk).
What oil does In-N-Out Burger fry in? The full answer
Eating at In-N-Out Burger soon? Build your order in the app and see its seed oil total before you pay.
Build my orderAsk In-N-Out Burger to drop seed oils
15 people have asked so far.
One tap, anonymous, no signup. We keep each chain's total public so the demand is impossible to ignore.
Safest Orders at In-N-Out Burger
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.
Cleanest full order: Cheeseburger + Coca-Cola, 5.1g total
| Item | PUFA |
|---|---|
| Cheeseburger Protein Style | 3.5g |
| Double-Double Protein Style | 3.5g |
| Hamburger Protein Style | 4.7g |
| Cheeseburger | 5.1g |
| Double-Double | 5.1g |
Build your In-N-Out Burger 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.
Build my orderWhat to Avoid at In-N-Out Burger
| Item | PUFA |
|---|---|
| Animal Style Fries | 17.0g |
| Double-Double Combo | 16.0g |
| Cheese Fries | 15.0g |
| Cheeseburger Combo | 14.0g |
| Hamburger Combo | 13.0g |
Every In-N-Out Burger item, ranked
All 38 items we have for In-N-Out Burger, safest first. Values are estimated grams of seed-oil PUFA per item.
| Item | PUFA |
|---|---|
| Fountain Drink | 0.0g |
| Arnold Palmer | 0.0g |
| Lemon-Up | 0.0g |
| Lite Pink Lemonade | 0.0g |
| Signature Pink Lemonade | 0.0g |
| Sweet Iced Tea | 0.0g |
| Unsweetened Iced Tea | 0.0g |
| Decaf Coffee | 0.0g |
| Coffee | 0.0g |
| Hot Cocoa | 0.1g |
| Milk | 0.4g |
| Root Beer Float | 1.0g |
| Double-Double (with mustard & ketchup instead of spread) | 1.6g |
| Chocolate Shake | 1.6g |
| Strawberry Shake | 1.6g |
| Vanilla Shake | 1.7g |
| Neapolitan Shake | 2.0g |
| Cheeseburger Protein Style | 3.5g |
| Double-Double Protein Style | 3.5g |
| Hamburger Protein Style | 4.7g |
| Cheeseburger | 5.1g |
| Double-Double | 5.1g |
| 3x3 | 5.1g |
| 4x4 | 5.1g |
| Spread | 5.4g |
| Hamburger | 5.6g |
| Grilled Cheese | 5.9g |
| Animal Style Hamburger | 8.0g |
| French Fries | 8.0g |
| Flying Dutchman | 8.0g |
| Cheeseburger Animal Style | 9.0g |
| French Fries (Well Done) | 11.0g |
| Double-Double Animal Style | 11.0g |
| Hamburger Combo | 13.0g |
| Cheeseburger Combo | 14.0g |
| Cheese Fries | 15.0g |
| Double-Double Combo | 16.0g |
| Animal Style Fries | 17.0g |
Fry Oil History at In-N-Out Burger
In a May 2025 update, owner Lynsi Snyder said the chain is researching a better quality oil for its fries and has already pulled cottonseed oil out of its buns. No replacement fry oil has been named. Source
Every documented oil switch across the industry lives on the Oil History timeline.
Frequently asked
Does In-N-Out Burger use seed oils?
Based on our menu research, In-N-Out Burger cooks with: sunflower oil. Across the 38 menu items we analyzed, it averages 5.0g estimated PUFA per item, earning a seed-oil grade of B (Medium Risk).
What oil does In-N-Out Burger cook with?
Our research indicates: 100% sunflower oil for fries (cut fresh in-store; switched off cottonseed oil around 2017); burgers cooked on a flat-top with minimal added oil; spread and dressings are soybean-oil based. Preparation can vary by location, so treat PUFA numbers as estimates.
Does In-N-Out Burger use beef tallow?
No. Our research indicates In-N-Out Burger cooks with sunflower oil, not beef tallow. For chains that fry in tallow or other real fats, see Tallow Watch.
Is In-N-Out Burger seed oil free?
No. Our research indicates In-N-Out Burger cooks with sunflower oil, which includes seed oils. See the lower-PUFA orders above for the cleanest picks.
What is the safest thing to order at In-N-Out Burger?
Cheeseburger Protein Style is the lowest-PUFA item we analyzed at In-N-Out Burger, at an estimated 3.5g PUFA. See the Safest Orders list on this page for more options.
What should I avoid at In-N-Out Burger?
Animal Style Fries is the highest-PUFA item we analyzed at In-N-Out Burger, at an estimated 17.0g 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. New to the topic? Start with what seed oils are and the complete list, or read the evidence on why people avoid them.
Compare other chains
McDonald's · Burger King · Wendy's · Five Guys · Whataburger · Culver's
See where In-N-Out Burger lands on the full Seed Oil Index, or check which chains cook in real fats on Tallow Watch. Wondering about a specific dish instead? The Is It Seed Oil food guide answers it for 200+ everyday foods, and the distributor oils page covers what independent restaurants fry in.