Sauce swapDouble-Double with Onion, Mustard and Ketchup
PCF1,600 mg sodiumSame protein as the standard, fewer calories.
High-protein picks at In-N-Out
Protein Style is a bun swap, not a bonus.
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In-N-Out Burger orders ranked by protein per calorie
- Double-Double with Onion, Protein StylePCF6.5 g protein per 100 cal1,390 mg sodium
- Double-Double with Onion, Mustard and KetchupPCF6.2 g protein per 100 cal1,600 mg sodium
- Cheeseburger with Onion, Protein StylePCF5.7 g protein per 100 cal800 mg sodium
- Double-Double with OnionPCF5.6 g protein per 100 cal1,670 mg sodium
- Hamburger with Onion, Mustard and KetchupPCF5.3 g protein per 100 cal610 mg sodium
See all 11
- Cheeseburger with Onion, Mustard and KetchupPCF5.3 g protein per 100 cal1,020 mg sodium
- Cheeseburger with OnionPCF4.7 g protein per 100 cal1,080 mg sodium
- Hamburger with OnionPCF4.4 g protein per 100 cal670 mg sodium
- Vanilla Shake15 ozPCF2.7 g protein per 100 cal360 mg sodium
- Chocolate Shake15 ozPCF2.6 g protein per 100 cal370 mg sodium
- Strawberry Shake15 ozPCF2.5 g protein per 100 cal350 mg sodium
Sodium over 1,500 mg in red. Source: In-N-Out Burger nutrition page, US menu, November 4, 2026. Not affiliated with In-N-Out Burger.
Questions
What has the most protein at In-N-Out?
The standard and mustard-ketchup Double-Double tie at 34 g protein. Protein Style has 30 g.
Is In-N-Out Protein Style higher in protein?
No. Removing the bun also removes some protein. The Double-Double drops from 34 g to 30 g.
Is an In-N-Out shake a good high-protein pick?
A vanilla shake has 16 g protein, matching the hamburger, but more calories. A burger offers a better protein-per-calorie ratio.
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Strong ratioDouble-Double with Onion, Protein Style
PCF1,390 mg sodiumLess protein than the bun version, fewer calories.