The ketogenic diet, which emphasizes high-fat and very-low-carb eating, can seem incompatible with the convenience of fast food. However, with a few simple modifications and some savvy ordering, you can find satisfying and compliant meals at many drive-thru and fast-casual restaurants. The primary strategy is to remove or replace high-carb elements like buns, breading, rice, and tortillas, while focusing on protein, fats, and low-carb vegetables.
Keto Options at Popular Fast Food Chains
Burger Joints
For burger chains, the solution is often as simple as asking for a 'bunless' or 'protein-style' burger. These restaurants are accustomed to such requests and will serve your burger patty, cheese, and toppings in a container or wrapped in a large lettuce leaf.
- McDonald's/Burger King: Order any burger, such as a Double Cheeseburger or Whopper, without the bun and ketchup. You can load up on cheese, pickles, onions, and mustard. For breakfast, skip the biscuit or muffin and get the sausage patty, eggs, and cheese.
- Five Guys: This is a keto favorite because you can order any burger in a bowl or a lettuce wrap, and customize it with a wide array of free toppings like grilled mushrooms, onions, and jalapenos. Ask for extra bacon and cheese for a higher fat content.
- Wendy's: Similar to other burger places, you can get a Baconator or Double Stack without the bun. Be sure to avoid sugary sauces and ketchup. Their side salads can also work if you choose a full-fat, low-sugar dressing.
- In-N-Out Burger: Famous for its 'Protein-Style' option, which wraps the burger in lettuce. The 'Flying Dutchman' is another secret menu item—just two beef patties and two slices of cheese.
Mexican-Style Restaurants
Mexican fast-casual places offer fantastic customizable options, where you can build your own bowl or salad with keto-friendly ingredients.
- Chipotle: Order a salad bowl with a lettuce base. Choose your preferred meat (steak, chicken, carnitas), and add fajita veggies, salsa, guacamole, cheese, and sour cream. Skip the rice, beans, and corn.
- Taco Bell: Create a 'Power Bowl' without the rice and beans. Load it with seasoned beef or chicken, cheese, sour cream, and guacamole.
- Moe's Southwest Grill: Customize a burrito bowl by starting with a lettuce base and adding adobo chicken or steak, cheese, grilled peppers, and guacamole.
Chicken Restaurants
Fried chicken is off the table due to high-carb breading, but many places have grilled alternatives.
- Chick-fil-A: Opt for the Grilled Chicken Nuggets or the Cobb Salad with grilled nuggets and Avocado Lime Ranch dressing. Just make sure to hold the crispy bell peppers and croutons.
- KFC: For a simple option, a few pieces of their grilled chicken (if available) with a side of green beans can fit the bill. Most locations no longer offer grilled chicken, so check before ordering. Alternatively, you can have their Caesar side salad without croutons.
- Popeye's: The Blackened Chicken Tenders are a low-carb lifesaver. Avoid all breaded and fried items, and sauces with sugar.
Sandwich Shops
These restaurants are great for 'deconstructed' or lettuce-wrapped meals.
- Jimmy John's: Order any sub as an 'Unwich,' which replaces the bread with a large lettuce wrap.
- Subway: All subs can be turned into a salad. Choose your favorite meats, cheese, and non-starchy vegetables. Request oil and vinegar or a full-fat, low-sugar dressing.
Customizing Your Order for Keto Success
To ensure your fast-food meal stays within your macros, remember these critical ordering strategies:
- Avoid the Bun/Bread: The most important step for any burger or sandwich joint. You can ask for a lettuce wrap or a bowl.
- Skip Fried and Breaded Items: Fried chicken, onion rings, and fries are always high in carbs and should be avoided.
- Watch the Condiments: Many sauces are hidden sugar traps. Steer clear of ketchup, BBQ sauce, and honey mustard. Opt for mayo, mustard, or ranch dressing (confirm low-carb content).
- Be Mindful of Toppings: Some toppings, like croutons in a salad, can add unnecessary carbs. Always ask for them to be omitted.
- Prioritize Healthy Fats: Add avocado, cheese, or extra fatty dressings to increase your fat intake and promote satiety.
Fast Food Keto Comparison Table
| Restaurant | Keto-Friendly Meal (Example) | Modifications Required | Potential Pitfalls |
|---|---|---|---|
| McDonald's | Double Cheeseburger, no bun | Omit bun, ketchup | Sugary sauces, fries, buns |
| Chipotle | Salad Bowl with chicken | Omit rice, beans, corn, tortilla | Hidden carbs in some salsas |
| Chick-fil-A | Grilled Chicken Nuggets | None (pair with keto side) | Breaded chicken, sweet sauces |
| Five Guys | Bacon Cheeseburger, lettuce wrap | Order "lettuce wrap" or bowl | Fries are not an option |
| Jimmy John's | Any "Unwich" | Order as "Unwich" | None (built for low-carb) |
Conclusion
Staying on a keto diet doesn't mean sacrificing convenience or avoiding fast food altogether. By remembering to ditch the bread, choose grilled over fried, and be mindful of high-sugar condiments, you can navigate nearly any fast-food menu with ease. Planning ahead by checking online nutrition information can also help you make informed decisions and find a satisfying meal that fits your macros, even on the busiest days. It's all about making smart, mindful choices, which is entirely possible whether you're at a dedicated burger joint or a build-your-own bowl restaurant.
For more specific nutritional data and personalized ordering tips, resources like Diet Doctor provide extensive guides on eating low-carb at various chains.