Walk into In-N-Out and order your burger “Protein Style,” and the crew doesn’t even blink. It’s one of the most requested custom orders in the whole chain right up there with Animal Style. But try to find the real numbers online, and things fall apart fast. One site says a Double-Double Protein Style has 520 calories. Another says 460. A keto blog claims it’s almost carb-free. Another says it has 10 grams of carbs. Ask five sites, get five different answers.
Here’s the real reason for the mess: Protein Style isn’t its own menu item. It’s just a swap you ask for — lettuce instead of a bun added onto a regular burger. Because it’s hidden inside another item, every tracker calculates it a little differently, and none of them agree.
What Is In-N-Out Protein Style?
In-N-Out Protein Style is the chain’s lettuce-wrap burger instead of a bun, your patties, cheese, and toppings are wrapped in large, hand-leafed iceberg lettuce leaves. It’s listed on In-N-Out’s official “Not So Secret Menu,” so you’re not asking for anything unusual or off-script. It’s ordered exactly like a regular burger you just say “Protein Style” when you order a Hamburger, Cheeseburger, or Double-Double, and the kitchen swaps the bun for lettuce.
It’s become the go-to In-N-Out lettuce wrap burger for anyone cutting carbs, avoiding gluten, or just wanting a lighter version of the classic order and unlike a lot of fast-food “diet hacks,” it’s a genuinely popular, standard request that staff make dozens of times a shift.
In-N-Out Protein Style Calories & Nutrition Facts
The table below provides a complete nutritional breakdown of all three In-N-Out Protein Style burgers, using the latest nutrition data published by In-N-Out. It includes calories, fat, carbohydrates, protein, sodium, and other key nutrients, so you can compare each option side by side before ordering.
Item | Calories | Total Fat | Saturated Fat | Cholesterol | Sodium | Total Carbohydrates | Dietary Fiber | Sugars | Protein |
|---|---|---|---|---|---|---|---|---|---|
Hamburger Protein Style | 210 | 14g | 4.5g | 35mg | 390mg | 9g | 2g | 6g | 12g |
Cheeseburger Protein Style | 280 | 19g | 8g | 55mg | 800mg | 11g | 2g | 7g | 16g |
Double-Double Protein Style | 460 | 32g | 15g | 110mg | 1,390mg | 12g | 2g | 7g | 30g |
The table below provides a complete nutritional breakdown of all three In-N-Out Protein Style burgers, using the latest nutrition data published by In-N-Out. It includes calories, fat, carbohydrates, protein, sodium, and other key nutrients, so you can compare each option side by side before ordering.
Burger | Standard (With Bun) | Protein Style | Calories Saved | Carbohydrates Saved |
|---|---|---|---|---|
Hamburger | 360 Calories / 38g Carbs | 210 Calories / 9g Carbs | 150 Calories | 29g |
Cheeseburger | 430 Calories / 40g Carbs | 280 Calories / 11g Carbs | 150 Calories | 29g |
Double-Double | 610 Calories / 42g Carbs | 460 Calories / 12g Carbs | 150 Calories | 30g |
The pattern holds across the whole menu swapping to Protein Style consistently cuts about 150 calories and roughly 29–30g of carbs, regardless of which burger you start with, since it’s the bun itself doing almost all of that work.
In-N-Out Protein Style Price (2026)
One of the biggest advantages of ordering Protein Style is that it costs absolutely nothing extra. Unlike many fast-food chains that charge for premium substitutions, In-N-Out treats the lettuce wrap as a standard customization rather than an add-on. That means you’ll pay exactly the same price as the regular version of your burger. For example, a Double-Double Protein Style is priced the same as a standard Double-Double—typically between $3.95 and $5.65 in 2026, depending on the restaurant’s location and regional pricing. Whether you’re choosing Protein Style to cut carbs, reduce calories, or avoid gluten, the fresh hand-leafed lettuce wrap is included at no additional cost, making it one of the best-value healthy customizations on the In-N-Out menu.
In-N-Out Protein Style Carbs: What’s Actually Left
A common search is “In-N-Out Protein Style carbs” or specifically the net carb count. Based on the official figures above:
- Hamburger Protein Style: 9g total carbs, 2g fiber → 7g net carbs
- Cheeseburger Protein Style: 11g total carbs, 2g fiber → 9g net carbs
- Double-Double Protein Style: 12g total carbs, 2g fiber → 10g net carbs
Those remaining carbs come almost entirely from the tomato, onion, and the small amount of sugar in the spread not from any hidden starch, since the lettuce itself is negligible in carbs.
Is In-N-Out Protein Style Keto Friendly?
Yes Protein Style is widely regarded as one of the best fast-food keto options available, and it shows up consistently in keto and low-carb fast food roundups alongside bunless orders from Five Guys, Wendy’s, and McDonald’s. At roughly 7–10g net carbs depending on which burger you choose, it comfortably fits inside a standard 20–50g daily keto carb budget, even before accounting for anything else you eat that day.
A few things to watch if you’re strict about it:
- The spread contains a small amount of sugar — if you’re being precise, you can ask for no spread or a mustard/ketchup swap to shave off a gram or two of sugar.
- It’s not zero-carb — the tomato and onion contribute most of what’s left, so ask to hold either if you want the lowest possible carb count.
- It pairs poorly with fries — a regular order of In-N-Out fries adds 49g of carbs on its own, which would erase the entire point of going Protein Style.
In-N-Out Protein Style vs. Regular Burger
Protein Style offers the same classic In-N-Out flavor without the traditional bun. Swapping the bun for fresh lettuce cuts calories and carbs while keeping the rest of the burger virtually unchanged. Here’s a side-by-side comparison of the two options.
Feature | Regular Burger | Protein Style |
|---|---|---|
Bun | Wheat Flour Bun | Hand-Leafed Iceberg Lettuce Wrap |
Total Carbohydrates | 38–42g (Depending on the Burger) | 9–12g |
Calories | Standard Calories | Approximately 150 Fewer Calories |
Gluten | Present (Bun Contains Wheat) | No Bun (Suitable for Gluten Avoidance, Cross-Contact May Occur) |
Ease of Eating | Easy to Hold and Eat | Messier—Usually Requires Two Hands and Sometimes a Fork |
Flavor | Classic In-N-Out Taste | Same Beef, Cheese, and Spread with a Fresher, Crunchier Lettuce Bite |
Price | Standard Menu Price | Same Price — No Extra Charge |
The taste doesn’t really change you’re eating the exact same patties, cheese, spread, and toppings. The only real difference is texture and how it holds together: expect a bit more mess, since lettuce doesn’t have the structural integrity of a toasted bun.
In-N-Out Protein Style Animal Style
You can absolutely combine the two customizations order your burger “Protein Style, Animal Style” and you’ll get a lettuce-wrapped burger with a mustard-cooked patty, grilled onions, pickles, and extra spread. It’s a completely standard combination request and doesn’t cost anything extra either, though it will add roughly 80–100 calories and a bit more sodium and sugar from the extra spread and grilled onions compared to a plain Protein Style order.
How to Order In-N-Out Protein Style
Ordering is simple there’s no special code or secret phrase needed:
- Order your burger of choice as normal (Hamburger, Cheeseburger, or Double-Double).
- Say “Protein Style” when you place the order.
- Add any other customizations you want (Animal Style, extra spread, no onion, etc.) in the same breath.
- That’s it — the kitchen wraps it in lettuce instead of putting it on a bun, at no extra charge.
It works the same way whether you’re ordering at the counter, drive-thru, or via a mobile order where available.
In-N-Out Protein Style in the Bigger Keto/Low-Carb Fast Food Picture
In-N-Out isn’t the only chain offering a bunless or lettuce-wrapped burger it’s part of a broader shift toward low-carb fast food options across the industry. Here’s how it compares to similar orders elsewhere:
Restaurant Chain | Low-Carb Menu Option | Approximate Net Carbs |
|---|---|---|
In-N-Out | Double-Double Protein Style | ~10g (Official In-N-Out Nutrition Data) |
Five Guys | Bunless Burger (Lettuce Wrap or Bowl) | ~3–5g (Third-Party Keto Estimate) |
Wendy’s | Bunless Double Stack | ~1g (Third-Party Keto Estimate) |
McDonald’s | Bunless Quarter Pounder with Cheese | ~3–4g (Third-Party Keto Estimate) |
Only the In-N-Out figure comes from a brand-published nutrition sheet the same way the numbers earlier in this guide do. The other three are calculated by keto/nutrition sites subtracting a standard bun from each chain’s official bunned numbers a reasonable estimate, but not something Five Guys, Wendy’s, or McDonald’s publish as an official “bunless” line item themselves.
The main thing that sets In-N-Out apart isn’t the carb count several competitors land lower it’s that Protein Style has been a standing, no-cost, official menu option since long before “keto” became a mainstream term, rather than a modification staff have to accommodate on the fly.
Final Thoughts
Once you get past the confusing numbers online, the real story is simple. Protein Style uses the exact same beef, cheese, and spread as a regular order. The only thing that changes is what holds the burger together — lettuce instead of a bun. That one swap costs nothing extra. It cuts about 150 calories and 29 to 30 grams of carbs off every burger on the menu. That’s enough to turn a regular fast-food order into something that fits a keto or low-carb day, without doing any math.
And here’s the interesting part: it works the same way no matter which burger you pick. A Hamburger, a Cheeseburger, and a Double-Double all lose almost the exact same amount of calories and carbs when you go Protein Style. That’s because the bun is what’s driving the change — not how many patties you order. So the real question isn’t “which Protein Style burger is healthiest.” It’s just “how much meat and cheese do I want today,” since the carb savings stay about the same either way. If your goal is to stay under a carb limit, skip gluten, or just eat something lighter without losing the flavor, Protein Style gets you there. You don’t give up taste, price, or convenience to do it. That’s rare in fast food — and it’s why this order grew from a “secret menu” trick into a normal, no-questions-asked part of ordering at In-N-Out.
Frequently Asked Questions
Does In-N-Out Protein Style taste different from the regular burger?
Not in terms of the core flavor it’s the same beef, cheese, spread, and toppings. The main difference is texture: you lose the soft, toasted bun and gain a cooler, crisper bite from the lettuce, and it’s noticeably messier to eat.
Is Protein Style healthier than the regular burger?
It’s lower in calories and carbohydrates than the standard build, which makes it a reasonable option if you’re managing either of those. It’s still a burger with real beef and cheese, though, so “healthier” mainly applies in the context of carb or calorie counting rather than making it a diet food outright.
Is In-N-Out Protein Style Whole30 compliant?
Not quite as ordered the spread contains soybean oil and a small amount of sugar, both of which are off-limits on a strict Whole30. Some people order it with the spread removed and cheese left off (making it closer to a Whole30-friendly patty-and-lettuce combination), but as In-N-Out serves it by default, it isn’t Whole30 compliant.
Does Protein Style cost extra?
No it’s a free substitution at every location, regardless of which burger you order it on.
Can I get Protein Style at the drive-thru?
Yes, it’s ordered exactly the same way as at the counter just tell the associate “Protein Style” when placing your order.
Is In-N-Out Protein Style Gluten Free?
Ordering Protein Style removes the only gluten-containing component of the burger the bun since the patties, cheese, spread, lettuce, tomato, and onion are otherwise wheat-free. That said, In-N-Out’s kitchens are not dedicated gluten-free environments, and shared grill surfaces and prep areas mean cross-contact is possible. If you have celiac disease or a severe gluten sensitivity, it’s worth checking In-N-Out’s official allergen documentation and talking to staff directly rather than relying on the Protein Style swap alone.
Can You Get Protein Style With Cheese?
Yes. Choosing Protein Style only replaces the traditional bun with a fresh hand-leafed lettuce wrap it doesn’t remove any of the other ingredients. If you want cheese, simply order a Cheeseburger Protein Style or Double-Double Protein Style, both of which come with cheese by default. If you prefer a burger without cheese, order the Hamburger Protein Style, which includes the same fresh beef patty and toppings but no cheese. This makes it easy to customize your order while keeping the classic In-N-Out flavor.
