Highest-Protein Meals at In-N-Out Burger: Full Ranking (2026)

The highest-protein item at In-N-Out Burger is Double Double Burger w/ Onion, Mustard & Ketchup, with 37 g of protein and 590 calories. The table below ranks the 30 highest-protein items on the US menu, with calories and protein per 100 calories so you can spot the most protein-efficient choices.

Highest-protein items at In-N-Out Burger (US menu)

Ranked by grams of protein per item. The last column shows protein per 100 calories, a quick measure of protein efficiency:

#	Item	Protein (g)	Calories	Carbs (g)	Fat (g)	Protein per 100 cal
1	Double Double Burger w/ Onion, Mustard & Ketchup	37	590	41	32	6.3
2	Cheeseburger w/ Onion, Mustard & Ketchup	22	400	41	18	5.5
3	Hamburger w/ Onion, Mustard & Ketchup	16	310	41	10	5.2
4	Milk	12	180	18	6	6.7
5	Chocolate Shake	10	590	72	29	1.7
6	Vanilla Shake	10	580	67	31	1.7
7	Strawberry Shake	8	590	81	27	1.4
8	French Fries	7	395	54	18	1.8
9	Hot Cocoa	2	130	27	3	1.5
10	Hot Cocoa w/ Marshmallows	2	155	33	3	1.3
11	Coffee	1	5	0	0	20.0

Track restaurant meals with Nutrola

Restaurant portions are easy to underestimate, and the calories add up fast. Nutrola is an AI calorie tracker built on a 1.8M+ RD-verified food and restaurant database, so you can check a menu item before you order. Log a meal by photo or by voice and you will see how it fits into your day.

Source and method

These figures come from Nutrola's 1.8M+ RD-verified food and restaurant database and reflect the US menu of In-N-Out Burger, so portion sizes and recipes can differ in other countries. Values are per item as served and are indicative, since menus and recipes change over time.

Frequently asked questions

What has the most protein at In-N-Out Burger?

Double Double Burger w/ Onion, Mustard & Ketchup leads with 37 g of protein (590 calories) on the US menu.

What is the most protein-efficient item at In-N-Out Burger?

Coffee gives about 20.0 g of protein per 100 calories, one of the best ratios on the menu.

How can I get more protein at In-N-Out Burger?

Choose grilled over fried, add a plain protein, and skip high-calorie sauces and sides. The ranking above shows the highest-protein items to build around.

Summary

For protein at In-N-Out Burger, Double Double Burger w/ Onion, Mustard & Ketchup tops the list at 37 g. Log your meal in Nutrola to track protein and calories together.