High-Protein In-N-Out: Best Orders and Exact Protein

The best high-protein order at In-N-Out is the Double-Double, Protein Style: 30g of protein for 460 calories, or 7g of protein per 100 calories. Every number on this page comes from In-N-Out's own nutrition data, checked October 3, 2026.

In-N-Out’s menu is short enough that the high-protein question comes down to two choices: how many patties, and what happens to the bun. Protein Style, which swaps the bun for lettuce, is the famous answer, but it cuts calories more than it helps protein. A Double-Double lists 34g of protein with the bun and 30g without it.

The 5 best high-protein In-N-Out orders

Each total is either one item exactly as In-N-Out lists it or published items added together. In-N-Out publishes separate numbers for Protein Style and for mustard and ketchup instead of spread, but not for both changes at once, so no order here combines them.

Double-Double, Protein Style

30g protein 460 calories 7g per 100 cal

Order: Double-Double, Protein Style (lettuce instead of the bun)

Two patties and two slices of cheese with the bun swapped for lettuce.
Double-Double with mustard and ketchup

34g protein 550 calories 6g per 100 cal

Order: Double-Double with mustard & ketchup instead of spread

Keeps the bun and all of its protein, and trims calories by skipping the spread.
Two cheeseburgers, Protein Style

32g protein 560 calories 6g per 100 cal

Order: 2 x Cheeseburger, Protein Style

Two smaller burgers with a little more protein than a Double-Double, Protein Style, and more calories.
Double-Double, Protein Style, and a milk

40g protein 620 calories 6g per 100 cal

Order: Double-Double, Protein Style + Milk

The milk adds protein to the meal without a shake.
Double-Double

34g protein 610 calories 6g per 100 cal

Order: Double-Double with onion, as listed

The standard version, with the most protein of any single burger In-N-Out publishes numbers for.

Every In-N-Out burger and shake, ranked

Every burger in each style In-N-Out publishes, plus fries, shakes, and milk, from In-N-Out’s Nutrition Facts.

Item	Size	Protein	Calories	Protein per 100 cal
Double-Double with mustard & ketchup instead of spread	280 g	34g	550	6g
Double-Double with onion	287 g	34g	610	6g
Double-Double, Protein Style ¹	289 g	30g	460	7g
Cheeseburger with mustard & ketchup instead of spread	222 g	20g	380	5g
Cheeseburger with onion	229 g	20g	430	5g
Cheeseburger, Protein Style ²	231 g	16g	280	6g
Hamburger with mustard & ketchup instead of spread	202 g	16g	300	5g
Hamburger with onion	209 g	16g	360	4g
Vanilla Shake	15 oz	16g	590	3g
Chocolate Shake	15 oz	16g	610	3g
Strawberry Shake	15 oz	15g	610	2g
Hamburger, Protein Style ³	211 g	12g	210	6g
Milk	10 oz	10g	160	6g
French Fries	125 g	6g	360	2g

Double-Double, Protein Style: Protein Style replaces the bun with lettuce.
Cheeseburger, Protein Style: Protein Style replaces the bun with lettuce.
Hamburger, Protein Style: Protein Style replaces the bun with lettuce.

Best In-N-Out picks by goal

Most protein in food under 400 calories

Cheeseburger with mustard & ketchup instead of spread: 20g protein, 380 calories (5g per 100 cal)
Cheeseburger, Protein Style: 16g protein, 280 calories (6g per 100 cal)
Hamburger with mustard & ketchup instead of spread: 16g protein, 300 calories (5g per 100 cal)

Highest protein among food (not drinks) at or under 400 calories.

Best drink

Vanilla Shake: 16g protein, 590 calories (3g per 100 cal)
Chocolate Shake: 16g protein, 610 calories (3g per 100 cal)
Strawberry Shake: 15g protein, 610 calories (2g per 100 cal)

Best protein per calorie among drinks with at least 15g of protein.

Easy ways to change the numbers at In-N-Out

In-N-Out doesn’t publish numbers for adding a patty or cheese, so the published options are these: moving up a burger size, going Protein Style, or swapping the spread.

Instead of	Order	Protein	Calories
Double-Double with onion	Double-Double, Protein Style	-4g	-150
Double-Double with onion	Double-Double with mustard & ketchup instead of spread	0g	-60
Hamburger with onion	Cheeseburger with onion	+4g	+70
Cheeseburger with onion	Double-Double with onion	+14g	+180

Make it at home

There isn’t a burger recipe on this site yet. The closest thing to Protein Style is the turkey and cheese lettuce wraps, and for beef, the garlic butter steak bites are the high-protein option.

FAQ

How much protein is in a Double-Double?

34g of protein for 610 calories, as In-N-Out lists it with onion. The Protein Style version lists 30g for 460.

Does Protein Style have more protein?

No, slightly less. Protein Style swaps the bun for lettuce, and the bun carried some protein. A Double-Double drops from 34g to 30g, a cheeseburger from 20g to 16g, and a hamburger from 16g to 12g. What Protein Style really changes is calories and carbs.

How much protein is in a 3x3 or 4x4?

In-N-Out doesn't publish nutrition for the 3x3, the 4x4, or for adding a patty or a slice of cheese, so I don't list numbers for them. The Double-Double is the biggest burger In-N-Out publishes, at 34g of protein.

Do In-N-Out shakes have protein?

Some. The chocolate shake lists 16g of protein, the vanilla 16g, and the strawberry 15g, but each runs 590 calories or more. A milk lists 10g for 160.

What's the lowest-calorie way to order a Double-Double?

Protein Style, at 460 calories. Keeping the bun but swapping the spread for mustard and ketchup lists 550 calories and keeps all 34g of protein.

Where these numbers come from

Nutrition checked October 3, 2026 against In-N-Out's official nutrition information. Numbers come from In-N-Out's Nutrition Facts PDF, dated January 2026. Burgers are listed with onion, as In-N-Out lists them. In-N-Out doesn't publish numbers for extra patties or cheese slices.