
In-N-Out Burger is a fast-food chain that serves burgers, fries, and milkshakes. It has a secret menu with keto-friendly options, including the Flying Dutchman, a burger with two beef patties acting as the bun and cheese in the middle. The Protein Style option replaces the bun with a lettuce wrap, and you can also customize your burger with toppings like mustard, grilled onions, and tomatoes to keep it keto-friendly. In-N-Out's burgers are known for being juicy and flavorful, making them a popular choice for those following a keto diet who want to enjoy fast food without compromising their dietary preferences.
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What You'll Learn

In-N-Out's Protein Style burger is keto-friendly
In-N-Out's Protein Style burger is a keto-friendly option for those looking to cut down on carbohydrates. The burger is wrapped in lettuce instead of a traditional carb-heavy bun, making it a popular choice for keto dieters. This option is available for various burgers on the In-N-Out menu, including the Double-Double, one of their most popular offerings.
The Protein Style burger is part of In-N-Out's Not So Secret Menu, which offers low-carb alternatives for keto enthusiasts. By ordering a burger Protein Style, customers can enjoy a more keto-friendly meal without sacrificing taste. The lettuce wrap provides a satisfying crunch and a sturdy replacement for the bun, making it easier to hold and eat.
In addition to the lettuce wrap, those on a keto diet can further customize their In-N-Out burger to suit their needs. They can choose from a range of toppings, including tomatoes, onions, and pickles. To enhance the flavor and keep it keto-friendly, customers can also swap out the signature spread sauce for mustard, a low-carb condiment.
For those who want an even more substantial keto option, In-N-Out offers the Flying Dutchman, which consists of two beef patties acting as the "bun" with cheese in the middle. This burger can be customized with toppings like lettuce, tomato, and onion, providing a budget-friendly keto meal.
With its Protein Style burger and other customizable options, In-N-Out makes it convenient for keto dieters to enjoy fast food that aligns with their dietary preferences. The ability to swap out buns for lettuce wraps and make smart topping choices ensures that customers can stick to their keto goals while indulging in a delicious meal.
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The Flying Dutchman is a keto-friendly option
If you're on a keto diet and craving a burger, In-N-Out has got you covered. While fast food often relies on carb-heavy ingredients, In-N-Out offers a range of keto-friendly options, including the Flying Dutchman.
The Flying Dutchman is a popular item on the In-N-Out secret menu. It consists of two slices of cheese sandwiched between two burger patties and grilled. This burger has zero grams of carbs, making it a great keto option. You can choose to add a lettuce wrap, which makes it easier to eat and feel like a proper burger.
To make your Flying Dutchman even more keto-friendly, you can skip the ketchup and ask for mustard instead. Mustard is a low-carb condiment that will add flavour to your burger without compromising your keto diet. You can also add toppings like onions, lettuce, and tomatoes to customise your burger to your taste.
In addition to the Flying Dutchman, In-N-Out offers other keto-friendly options. You can order any of their burgers protein style, which means they will be wrapped in lettuce instead of a bun. This simple swap can significantly reduce the carb count of your meal.
So, if you're on a keto diet and craving a burger, head to In-N-Out and order the Flying Dutchman or any of their other keto-friendly options. With a few simple modifications, you can enjoy a delicious and satisfying meal that fits within your dietary restrictions.
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Keto-friendly toppings at In-N-Out
In-N-Out offers a variety of keto-friendly toppings that can be added to their burgers. While the availability of specific toppings may vary by location and season, here are some options to consider when ordering a keto-friendly burger at In-N-Out:
Lettuce Wrap: One of the most popular keto-friendly options at In-N-Out is to replace the traditional burger bun with a lettuce wrap. In-N-Out uses hand-leafed lettuce, which means each burger is wrapped in a larger, stronger leaf, making it easier to hold and eat. This simple swap significantly reduces the carb count of your burger.
Mustard: Mustard is a keto-friendly condiment that can add a boost of flavor to your burger. You can ask for your patty to be grilled in mustard or simply add it as a topping. This is a great way to enhance the taste of your burger while sticking to your keto diet.
Cheese: In-N-Out offers various cheese options, including American cheese and sliced cheese like provolone, Swiss, pepper jack, or cheddar. Cheese adds protein and a creamy texture to your burger.
Vegetables: You can choose from a variety of low-carb vegetables to top your burger. Options may include fresh or grilled onions, tomatoes, and lettuce. If you're looking for something more indulgent, you can also add grilled mushrooms or caramelized bell peppers for a savory umami flavor.
Meat: For those who want to load up on protein, In-N-Out offers the option to add extra beef patties to your burger. You can also explore other types of meat, such as bacon strips, which will add a smoky flavor to your burger.
When ordering keto-friendly toppings at In-N-Out, it's important to remember that the availability of certain toppings may vary by location. Additionally, while In-N-Out offers a wide range of customization options, some of their standard toppings, such as their signature spread, may contain a significant number of carbs. Always review the nutritional information and make adjustments to suit your specific keto diet needs.
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Customising your In-N-Out burger to make it keto-friendly
In-N-Out Burger offers a range of keto-friendly options that can be customised to suit your taste preferences. Here are some tips to help you order a keto-friendly burger at In-N-Out:
Choose a lettuce wrap instead of a bun
The standard burger bun can be replaced with a lettuce wrap, also known as "protein style". In-N-Out uses hand-leafed lettuce for its lettuce wraps, making them larger and stronger, easier to hold and eat, and a proper bun replacement.
Customise your toppings
In-N-Out offers a range of toppings that you can customise to suit your keto diet. You can add toppings such as:
- Mustard: Mustard is a low-carb condiment that can add flavour to your burger. You can brush the tops of your patties with mustard while cooking or spread it on your burger.
- Cheese: Add a slice of cheese to your burger, such as American cheese or unprocessed cheese.
- Vegetables: Include vegetables like lettuce, tomato, onion, and pickle. You can also grill the onions for extra flavour. However, be mindful of the additional carbs in these toppings.
- Meat: For extra protein, add some extra beef patties to your burger. You can also have other forms of meat, such as chicken, turkey, or pork, but it will change the classic In-N-Out burger flavour.
- Spicy kick: Include sliced jalapeños for a spicy boost or grilled mushrooms for a delicious umami flavour.
Avoid high-carb options
When ordering a keto-friendly burger at In-N-Out, it is essential to avoid certain high-carb options. Stay away from:
- Buns and bread: Avoid the standard burger bun and opt for a lettuce wrap instead.
- French fries: French fries are loaded with carbs, so they are not keto-friendly.
- Milkshakes and sugary drinks: These are high in sugar and carbs, so they should be avoided.
- Ketchup and spread sauce: The spread sauce and ketchup contain carbs, so it is recommended to skip them or use a keto-friendly alternative.
Keto-friendly drinks
When ordering your keto-friendly burger at In-N-Out, choose drinks that align with your keto diet. Recommended drink options include:
- Water
- Unsweetened iced tea
- Coke Zero
- Diet Coke
By following these customisation tips, you can enjoy a delicious and keto-friendly burger at In-N-Out that suits your dietary needs and preferences.
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Keto-friendly drinks at In-N-Out
While on a keto diet, it is recommended to avoid sugary drinks, milkshakes, and sweetened beverages. Here are some keto-friendly drinks you can order at In-N-Out:
- Unsweetened iced tea: This is a good alternative to sweetened beverages and can be paired with your burger.
- Coke Zero: A diet soda option that is keto-friendly.
- Diet Coke: Another diet soda option with no sugar, which aligns with keto diet recommendations.
- Water: Water is always a healthy and keto-friendly option to accompany your meal.
In-N-Out also serves coffee, but it is not clear if this is sweetened or unsweetened. It is best to inquire about this option when ordering.
It is important to note that while these drinks are keto-friendly, it is always a good idea to check the ingredients and nutrition information to ensure they align with your specific keto diet plan.
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Frequently asked questions
The Flying Dutchman is a popular keto-friendly option at In-N-Out. It consists of two beef patties with cheese in between, acting as the "bun". You can add toppings like lettuce, tomato, onion, and mustard.
You can order your burger "protein style", which replaces the bun with a lettuce wrap. You can also skip the signature spread sauce or swap it for mustard to reduce carbs further.
Avoid buns, bread, milkshakes, fries, and sugary drinks. When in doubt, stick to water, unsweetened tea, or diet sodas. Be cautious with condiments as some may be considered "dirty keto".
Yes, you can order any burger "protein style" to get it wrapped in lettuce instead of a bun. The Double-Double is a popular choice for this option.
Unfortunately, In-N-Out's menu is quite limited for strict keto dieters. However, you can ask for grilled onions or extra patties to increase your protein intake.







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