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Why does In-N-Out call it protein style?: The Nutritional Truth Behind the Lettuce Wrap

4 min read

Introduced in the 1970s, the "protein style" option at In-N-Out has been a staple on the restaurant's famous secret menu. It’s a simple customization that replaces the standard hamburger bun with large, crisp leaves of lettuce, and the name gives a big clue as to its nutritional purpose. This modification answers the question, Why does In-N-Out call it protein style?.

Quick Summary

An exploration of the 'protein style' burger from In-N-Out's secret menu, detailing its low-carb lettuce wrap, nutritional benefits, and historical context.

Key Points

  • Name Origin: "Protein Style" refers to the shift in macronutrient ratio, where the removal of the carb-heavy bun makes the protein from the beef and cheese a larger proportion of the meal.

  • Low-Carb Option: By replacing the bun with a lettuce wrap, the burger becomes a significantly lower-carb choice, suitable for keto and other low-carb diets.

  • Gluten-Free Alternative: As the bread is eliminated, a "protein style" burger is naturally gluten-free, catering to those with sensitivities.

  • Secret Menu Item: While not on the official menu board, "protein style" is a widely known and commonly requested modification from In-N-Out's secret menu.

  • Historical Roots: The customization was first introduced to the secret menu in the 1970s, indicating In-N-Out's long-standing tradition of accommodating customer requests.

  • Reduced Calories: Removing the bun also results in a lower overall calorie count for the burger.

In This Article

The reason In-N-Out uses the name "Protein Style" for its lettuce-wrapped burgers is quite straightforward: by removing the carbohydrate-heavy bun, the relative proportion of protein and fat in the meal increases significantly. The focus of the burger's nutrition shifts away from carbs and toward the beef patties, which are the primary source of protein. This simple but effective change was first introduced in the 1970s, long before low-carb and ketogenic diets became mainstream. It was an early way to cater to customers seeking alternatives to a traditional bun without compromising on the burger's iconic taste.

The Nutritional Impact: Swapping the Bun for a Wrap

The most significant benefit of ordering your In-N-Out burger "Protein Style" is the dramatic reduction in carbohydrates. A standard hamburger bun contains a substantial amount of carbs, which is completely removed when replaced with lettuce. This makes the burger an excellent choice for individuals following low-carb diets, such as keto, or for those with gluten sensitivities. For example, a single protein-style cheeseburger can have as few as 10 grams of total carbohydrates, compared to more than double that for a standard cheeseburger. This modification also reduces the overall calorie count of the meal, making it a lighter alternative.

Comparing Standard vs. Protein Style

To illustrate the nutritional difference, let's compare a standard cheeseburger with a protein-style cheeseburger based on information from In-N-Out's nutrition guide and third-party data.

Nutrient Standard Cheeseburger Protein Style Cheeseburger
Serving Size 247g 202g
Calories 480 kcal 270 kcal
Carbohydrates 39g 10g
Protein 22g 16g
Fat 27g 19g
Sodium 1000mg 800mg
Fiber 2g 2g

As the table shows, the protein-style version slashes the carbs and significantly cuts calories. While the protein content also slightly decreases (due to the smaller total serving size), the protein-to-carb ratio is far more favorable for those watching their carbohydrate intake. The fresh, quality ingredients, like never-frozen beef and hand-leafed lettuce, remain consistent regardless of the preparation style.

More Than a Name: What to Know About Ordering

Ordering an In-N-Out burger "Protein Style" is a simple process, despite it being a well-known secret menu item. All In-N-Out employees are familiar with the term. The preparation involves replacing the bun with large, fresh, and crisp iceberg lettuce leaves that are carefully wrapped around the beef patty and toppings.

Key features of the Protein Style burger:

  • The Lettuce Wrap: Large, crunchy iceberg lettuce leaves are used to contain the burger ingredients, providing a satisfying, fresh crunch.
  • Fresh Ingredients: The high-quality, fresh ingredients remain a core component of the burger, including the 100% American beef patty, tomato, onions, and special spread.
  • Dietary Suitability: Beyond being a low-carb option, it is also a suitable choice for those on a gluten-free diet, as it eliminates the wheat-based bun.
  • Customization: You can still customize your burger with additional toppings like extra spread, pickles, or grilled onions, just as you would with a regular burger.

The Protein Style Name: Marketing and Diet Trends

The choice of the name "Protein Style" is a testament to In-N-Out's brand history and long-standing awareness of customer dietary needs. While the name is a registered trademark (Protein Style®), it also taps into the broader trend of high-protein diets. Decades ago, when the modification was introduced, diets focused on protein for weight loss and satiety were common. The name cleverly emphasizes the key macronutrient that remains prominent after the bun is removed, aligning with the dietary goals of many customers. This differs from other secret menu items like "Animal Style," which describes a flavor profile rather than a nutritional focus.

The Evolution of the Secret Menu

In-N-Out's secret menu, which includes options like Protein Style, has long been a source of fascination and a driver of customer loyalty. The secret menu items originated from customer requests and employee creativity over the years. While the original menu has remained famously minimal, these hidden variations allow for a personalized and dynamic dining experience. The Protein Style option stands out because it caters specifically to dietary needs, proving that even a simple fast-food burger can be modified for healthier eating. The popularity of the Protein Style burger has solidified its place as a permanent, albeit unlisted, fixture on the menu, a testament to its practical benefits and the smart branding behind its name.

Conclusion: A Simple Name for a Smart Modification

Ultimately, In-N-Out calls it protein style because the simple removal of the bun fundamentally changes the macronutrient balance of the burger, shifting the focus to the high-quality beef and cheese. What began in the 1970s as a custom order has evolved into a well-known feature of the secret menu, providing a flavorful and convenient low-carb, gluten-free option for a wide range of customers. The name is both descriptive and a clever piece of marketing, capturing the nutritional essence of the modified burger in just two words.

References

Frequently Asked Questions

At In-N-Out, a "protein style" burger is a menu modification where the traditional hamburger bun is replaced with large, fresh leaves of lettuce.

The name comes from the fact that by removing the carbohydrate-heavy bun, the relative proportion of protein from the beef and cheese becomes more significant in the burger's overall nutritional content.

The "protein style" modification was introduced to In-N-Out's secret menu in the 1970s.

Yes, by replacing the bun with lettuce, the protein style burger has significantly fewer calories and carbohydrates compared to the standard version.

Yes, the protein style burger is a popular choice for people on a ketogenic diet because it is very low in carbohydrates.

You can order a "protein style" burger by simply asking the cashier for your desired burger (e.g., cheeseburger, Double-Double) "Protein Style".

Since the bun is eliminated and replaced with a lettuce wrap, the protein style burger is a gluten-free option.

No, "protein style" specifically refers to a burger with a lettuce wrap instead of a bun. Fries are not part of this modification, but you can order them separately.

References

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Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.