In-N-Out Secret Menu Calories: What 'Animal Style' and 'Protein Style' Really Cost You

In-N-Out's secret menu tweaks change your macros in predictable ways: Protein Style swaps the bun for a lettuce wrap and cuts a Double-Double from about 670 calories to 520 (and carbs from 39g down to 11g), while Animal Style adds roughly 80 to 120 calories per burger from extra spread, grilled onions, pickles, and a mustard-grilled patty. Animal Style Fries jump to around 750 calories, nearly double a plain order. Below is the full breakdown so you know what you are actually eating.

How the In-N-Out secret menu actually works

There is no mystery kitchen. The In-N-Out "secret menu" is just a set of well-known modifications the crew will make to items already on the board. That is good news for tracking, because it means you can build the numbers yourself from the base burger plus (or minus) a few components. You can see the standard lineup on our In-N-Out calories page, and everything below stacks on top of those figures.

Two changes matter most for your macros:

• Protein Style removes the bun and wraps the burger in lettuce. Pure calorie and carb reduction.
• Animal Style keeps the bun but piles on extra Thousand Island spread, adds pickles, cooks the patty in mustard, and tops it with caramelized grilled onions. Pure calorie addition.

They pull in opposite directions, which is why lumping them together as "secret menu" is misleading. One is a cut, one is a bulk.

Protein Style: the low-carb move

Protein Style is the single easiest way to shave calories at In-N-Out. Ditching the bun removes the roughly 150 calories and 28g of carbs a standard bun brings, and In-N-Out actually publishes these versions officially. Here is what each burger looks like with the lettuce wrap.

The pattern is consistent: about 150 calories and roughly 28g of carbs gone per burger. If you are eating low-carb or just want to leave room for fries or a shake, a Protein Style Double-Double at 520 calories with 33g of protein is a legitimately solid ratio. That is more protein than a McDonald's 6-piece McNuggets (16g) plus a small fries combined, for a similar calorie count.

One catch with Protein Style

The lettuce wrap gets messy and the spread does not go anywhere, so the fat stays high. Protein Style is a carb cut, not a fat cut. If your goal is trimming fat, order it "no spread" or ask for ketchup and mustard instead, which knocks off another 80 or so calories of mayo-based sauce.

Animal Style: what you are really adding

Animal Style is where the calories climb. In-N-Out does not publish official Animal Style burger numbers, but the additions are known ingredients, so we can estimate the bump component by component:

• Extra spread (Thousand Island): roughly 80 calories of mostly fat per extra serving.
• Grilled onions: caramelized in a little oil, adding around 20 to 40 calories.
• Mustard-grilled patty: negligible calories, big flavor.
• Pickles: essentially free at around 5 calories.

Add it up and Animal Style tacks on roughly 80 to 120 calories per burger. A Double-Double Animal Style lands in the neighborhood of 770 calories, and a Cheeseburger Animal Style around 580. Not a disaster, but worth logging honestly. This is exactly the kind of "invisible" add-on that wrecks a day of tracking, so if you build your In-N-Out order in TrackBiteX, add the extra spread as its own line item instead of eyeballing it.

Animal Style Fries: the real calorie bomb

Here is the one to watch. In-N-Out fries are a plain 395 calories on their own (7g protein, 54g carbs, 18g fat). Go Animal Style and you add melted cheese, grilled onions, and a layer of spread, pushing the order to roughly 750 calories with over 40g of fat. That is nearly double a plain order and more calories than a full Cheeseburger.

Animal Style Fries are a shareable side, not a solo one, unless you are deep in a bulk. Split them with someone and you are back to a reasonable 375 calories each.

Building a smart In-N-Out order

You can absolutely eat here on a cut. The trick is picking one indulgence and keeping the rest lean. A few templates:

1. High protein, moderate calories: Double-Double Protein Style (520 cal, 33g protein). Done. That single item beats most fast-food combos on protein-per-calorie.
2. Balanced meal under 700: Cheeseburger Protein Style (330) plus a shared half order of plain fries (~200). Roughly 530 calories, 20g protein.
3. Treat day: Standard Double-Double (670) and split Animal Style Fries with a friend. You get the full experience without the 1,400-calorie solo blowout.

For comparison, In-N-Out's simplicity actually helps your tracking. A Chipotle order can swing wildly depending on scoops, and you can see how much builds vary on our Chipotle calories page. In-N-Out has maybe a dozen base items, so once you know the secret-menu math, you know your meal.

Protein Style vs Animal Style: which should you order?

They solve different problems. Order Protein Style when you want to cut carbs or save room for fries and a shake. Order Animal Style when you have the calories to spend and just want maximum flavor. And if you want the best of both worlds, a Double-Double Animal Style Protein Style exists: the mustard-grilled, extra-spread patty wrapped in lettuce. It lands around 620 calories with only about 11g of carbs, which is a genuinely defensible order.

The shakes are the sneaky part of any In-N-Out trip. A single shake runs around 580 to 590 calories, which is more than a Protein Style Double-Double. If you are counting, treat the shake as the main event of the meal, not an afterthought. That is a lesson that applies at any drive-thru, whether you are at In-N-Out, Chick-fil-A, or anywhere else.

Frequently Asked Questions

How many calories are in a Double-Double Animal Style?

A standard Double-Double is 670 calories. Going Animal Style adds extra Thousand Island spread, grilled onions, pickles, and a mustard-grilled patty, which bumps it to roughly 770 to 790 calories. Most of the added calories come from the extra spread, which is fat-heavy.

Is Protein Style at In-N-Out actually healthier?

It depends on your goal. Protein Style removes the bun, cutting about 150 calories and 28g of carbs per burger, which is great for low-carb eating. But the spread stays, so fat and total calories from sauce do not change. For a fat cut, also ask for no spread or sub ketchup and mustard.

How many calories are in Animal Style Fries?

Plain In-N-Out fries are 395 calories. Animal Style Fries add melted cheese, grilled onions, and spread, pushing the order to roughly 750 calories and over 40g of fat. That is nearly double, so they are best split between two people.

What is the lowest calorie thing at In-N-Out?

A Hamburger Protein Style is one of the lightest real options at about 240 calories with 13g of protein. If you want it even leaner, order it with no spread and add extra veggies. A plain black coffee or unsweetened tea keeps your drink calories near zero.

Does Animal Style cost extra calories on the burger and the fries?

Yes, both. On a burger, Animal Style adds roughly 80 to 120 calories from extra spread and grilled onions. On fries, it adds around 350 calories because cheese and spread are layered over a full order. The fries version is by far the bigger calorie increase.

Can I get a Flying Dutchman and is it low calorie?

The Flying Dutchman is two patties and two slices of cheese with no bun or veggies. It runs around 380 to 400 calories with roughly 27g of protein and almost zero carbs, making it a solid keto or low-carb pick. Skip the spread to keep the fat in check.