The honest answer: most fast food is cooked in seed oils and there is no easy workaround. Canola oil, soybean oil, and vegetable oil blends are standard across virtually every major US chain. The exceptions are few but real — Steak 'n Shake switched to beef tallow for its fries in 2025, Five Guys uses peanut oil, and some regional chains have followed. Knowing which options exist, and what to order at each, is the practical guide for anyone living seed oil free in the real world.
Seed Oil Free Fast Food Options in 2026
| Chain | Fries Cooked In | Seed Oil Free? | Best Options |
|---|---|---|---|
| Steak 'n Shake | Beef tallow (switched 2025) | ✅ Yes — fries | Smash burgers + tallow fries — the MAHA fast food option |
| Five Guys | Peanut oil (100%) | ⚠️ Peanut oil* | Burgers, dogs — peanut oil is a legume fat, not a seed oil |
| In-N-Out Burger | Sunflower oil | ❌ No | Burger patties are clean — skip the fries |
| Shake Shack | Canola oil | ❌ No | Nothing seed oil free |
| McDonald's | Canola + corn oil blend | ❌ No | Was tallow until 1990 — now seed oil |
| Chick-fil-A | Canola oil (switched 2012) | ❌ No | Was peanut oil — now canola |
| Whataburger | Soybean oil | ❌ No | Nothing seed oil free |
| Wendy's | Corn + soybean oil | ❌ No | Nothing seed oil free |
| Popeyes | Soybean oil | ❌ No | Nothing seed oil free |
| Chipotle | Rice bran oil | ❌ No | Rice bran is a seed oil |
| Sweetgreen | Various — check item | ⚠️ Limited | Some salads with olive oil dressing — ask kitchen |
| Jersey Mike's | No frying | ✅ Some items | Subs with no condiments — check bread ingredients |
*Peanuts are technically legumes, not seeds. Peanut oil is generally accepted in the MAHA community as an ancestral fat used in West African and Asian cooking.
Steak 'n Shake — The MAHA Fast Food Option
Steak 'n Shake's 2025 switch to beef tallow for frying is the most significant fast food development for the MAHA community in years. Their thin-cut fries are now fried in the same fat McDonald's used before 1990 — the fat that gave those fries their legendary flavour. The smash burgers are cooked on a flat top and use 100% beef patties. Order the burger and tallow fries, skip the bun if you want to avoid commercial bread oils, and ask about the seasoning on the fries for complete transparency.
Five Guys — The Peanut Oil Option
Five Guys uses 100% peanut oil for their fries and cooking surface. Peanut oil (groundnut oil) is ancestrally used in West African and Asian cuisines and is not classified as an industrial seed oil. It is high in oleic acid (similar to olive oil) and does not have the extreme omega-6 profile of canola or soybean oil. For most people in the MAHA community, Five Guys is an acceptable option. The fries are cooked fresh from whole potatoes in clean peanut oil — one of the most transparent fast food operations in the US.
What to Order at Seed-Oil-Heavy Chains
When you have no better option, order the foods least likely to have been cooked in or marinated with seed oils: plain grilled meat (chicken breast or beef patty with no marinade), plain side salads with no dressing (ask for olive oil and vinegar packets), black coffee or unsweetened tea, and any item where you can see the whole-food ingredients clearly. Avoid: anything fried, anything with sauces or dressings, anything described as marinated, and anything breaded.
The Seed Oil Free Restaurant Certification Movement
The Seed Oil Free Alliance (seedoilfreecertified.com) is building a directory of certified seed oil free restaurants. As of 2026 this is still a small list, predominantly independent restaurants in health-conscious cities. The movement is growing rapidly — following the MAHA movement's mainstream coverage and the US Dietary Guidelines shift on industrial fats, more restaurant groups are marketing their use of tallow, lard, and olive oil as a competitive advantage.
Frequently Asked Questions
Is Chick-fil-A cooked in seed oil?
Yes. Chick-fil-A switched from peanut oil to canola oil in 2012. Their chicken is now fried in canola oil across all locations.
Did McDonald's used to use tallow?
Yes. McDonald's fried in beef tallow until 1990, when Phil Sokolof's public health campaign and lobbying from seed oil producers led them to switch to partially hydrogenated vegetable oil. The flavour of the original fries is what people remember — it was the tallow. Many fans of the old McDonald's fries have noted that Steak 'n Shake's tallow fries taste similar.
Is In-N-Out seed oil free?
No. In-N-Out uses sunflower oil for frying. The burger patties themselves are 100% beef with no fillers and are cooked on a clean griddle, which is fine. But the fries are cooked in sunflower oil — a seed oil.
What fast food is safe on the MAHA diet?
Steak 'n Shake (tallow fries) and Five Guys (peanut oil fries) are the two most accessible options. Beyond that, plain grilled meat at any chain, plain salads with no dressing, and any whole-food item that hasn't been fried or marinated in a commercial sauce.
Is there a seed oil free restaurant finder?
Yes — seedoilfreecertified.com maintains a directory of certified seed oil free restaurants. The list is growing. For general guidance when travelling, look for: steakhouses (most use butter or beef fat), high-end farm-to-table (often use olive oil and butter), and ethnic restaurants in categories where the ancestral fat is still used — some Chinese, Indian, and West African restaurants still cook in the traditional fat.
Related guides: How to Avoid Seed Oils at Restaurants · What Are Seed Oils? · Seed Oil Free Grocery List · McDonald's and Tallow — the History · Hidden Seed Oils in Common Foods
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Also see: Seed Oil Free Meal Delivery Guide
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