In-N-Out Keto Menu: Complete Guide to Protein Style Burgers & Low-Carb Options

In-N-Out Keto Menu: Complete Guide to Protein Style Burgers & Low-Carb Options

In-N-Out is a keto dieter’s dream. With customization options that make other fast-food chains look primitive, you can order virtually any combination of meat, cheese, lettuce, and toppings—often with zero carbs per meal.

If you’ve been avoiding In-N-Out because you thought their menu was high-carb, you’re missing out. In fact, Protein Style burgers are one of the easiest keto wins at any chain restaurant.

This guide breaks down every keto-friendly option at In-N-Out, from basic customizations to advanced macro hacks.

Why In-N-Out Is Perfect for Keto

In-N-Out’s secret weapon: the “Protein Style” option. Instead of a bun, they wrap your burger in fresh iceberg lettuce. It’s not a secret menu hack—it’s officially available at every location.

Beyond Protein Style, In-N-Out offers:

  • 100% fresh beef (never frozen)
  • Customization without judgment
  • Low prices for quality
  • Nationwide presence (especially West Coast)
  • Simple ingredient list (no hidden sugars)

Bottom line: A double-double Protein Style with no spread is legitimately one of the cleanest fast-food keto meals available.

In-N-Out Keto Menu: Complete Breakdown

The Protein Style Burger (Keto Hero)

Item Protein Fat Net Carbs Calories
Protein Style Burger (1 patty) 16g 15g 2g 200
Double-Double Protein Style 33g 40g 2g 520
Triple-Triple Protein Style 50g 60g 2g 800

Pro tip: The Double-Double Protein Style is the sweet spot—filling, macro-balanced, and stays well under 30g net carbs for the whole meal.

Customizations That Make It Better

Standard customizations (all free):

  • No spread (saves 170 calories, all fat—worth it for variety)
  • Extra pickles (negligible carbs, adds flavor)
  • Grilled onions (2g carbs per serving, better than burger bun)
  • Extra lettuce (wraps it better)
  • No mustard (if you’re strict on ingredients)

Add protein options:

  • Extra patty (+2g carbs)
  • Add bacon (0g carbs, +3g protein, delicious)

Sides: What to Order

Item Carbs Keto-Friendly? Notes
Fries (any size) 41-54g High carb, skip entirely
Iced Tea (unsweetened) 0g Best beverage option
Water 0g Always free
Coca-Cola Zero Sugar 0g Official option

Reality check: In-N-Out doesn’t have great low-carb sides. Focus on the burger and skip the fries entirely.

Build Your Perfect Keto In-N-Out Order

The Basic Order (Keto Beginner)

  • Double-Double Protein Style, no spread
  • Unsweetened iced tea
  • Macros: 33g protein, 40g fat, 2g net carbs, 520 calories

The Power Order (Serious Gains)

  • Triple-Triple Protein Style, no spread, add grilled onions
  • Unsweetened iced tea
  • Macros: 50g protein, 60g fat, 4g net carbs, 820 calories

The Bacon Order (Maximum Flavor)

  • Double-Double Protein Style, add bacon, grilled onions
  • Unsweetened iced tea
  • Macros: 38g protein, 50g fat, 3g net carbs, 630 calories

What to Avoid at In-N-Out

In-N-Out’s limited menu actually works in your favor—there aren’t many carb traps:

  • Milkshakes: 60-70g carbs. Not even close to keto.
  • Regular burger with bun: 38-41g carbs (from bun alone).
  • Fries: 41-54g carbs. The only real temptation here.
  • Shakes (any flavor): All 60+ carbs.

The bottom line: Stick to burgers Protein Style, and you’re golden.

In-N-Out Hacks for Advanced Keto Dieters

Hack #1: The Bun-Less Flying Dutchman

Not on the menu, but In-N-Out will make it: grilled meat and cheese with no bun or lettuce wrap. Perfect if you’re in a car and don’t want lettuce dripping.

Hack #2: Protein Style + Mustard Only

Skip the spread, add extra mustard. Saves 170 calories without sacrificing flavor.

Hack #3: The Cheese Stack

Order extra cheese slices between patties. Adds fat for satiety, adds flavor variety.

Hack #4: No Lettuce Wrap Option

If you’re super strict (or testing zero-carb), ask for meat and cheese only—no lettuce wrap, no toppings.

Frequently Asked Questions

Is In-N-Out Protein Style actually zero carbs?

Not quite zero, but close. A Protein Style burger has 2g net carbs (from the lettuce and tomato). It’s negligible for keto macros.

Can I do intermittent fasting with an In-N-Out burger?

Absolutely. A Double-Double Protein Style has enough fat and protein to keep you satisfied for 4-6 hours easily.

Are In-N-Out patties grass-fed or organic?

No. They’re 100% fresh beef (never frozen), but not grass-fed or organic. Quality is still solid for a fast-food chain.

What if my location doesn’t have Protein Style as an option?

All U.S. In-N-Out locations have Protein Style. If yours doesn’t, contact management—it’s official policy.

Can I make Protein Style work for lazy keto?

Yes. Even without counting macros carefully, Protein Style keeps you under 5g net carbs consistently.

In-N-Out vs Other Fast-Food Keto Options

Chain Keto Option Net Carbs Availability Customization
In-N-Out Protein Style 2g West Coast Excellent
Five Guys Burger, no bun 3g Nationwide Excellent
McDonald’s Bunless burger 4g Everywhere Limited
Wendy’s Bunless burger 5g Everywhere Good

The Bottom Line: Is In-N-Out Keto-Friendly?

Yes, absolutely. In-N-Out is one of the most keto-friendly fast-food chains in America, especially on the West Coast.

The Protein Style burger is:

  • Simple: Just meat, cheese, lettuce, and toppings
  • Low-carb: 2g net carbs per burger
  • High-protein: 16-50g depending on patties
  • Affordable: $3-6 for a full meal
  • Satisfying: Keeps you full for hours

Next time you’re at In-N-Out, order Protein Style and never look back.

Your Action Plan

  1. Order a Double-Double Protein Style, no spread
  2. Add unsweetened iced tea
  3. Enjoy 33g protein, 2g carbs, zero guilt
  4. Come back next week and try the Triple-Triple

Keto doesn’t mean giving up fast food. It just means ordering smarter. In-N-Out makes it easy.

Amanda Dawn

HI! I'm Amanda. A trained chef, nutritionist, and writer who is passionate about helping people live a healthy lifestyle. I lost 75 lbs in my journey and I love to help others enjoy great, wholesome food!

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