How Many Calories Are in an In-N-Out 3x1 Protein Style?
•
5 min read
Based on official In-N-Out nutritional information, a standard 1x1 Protein Style cheeseburger contains 270 calories, making the secret menu 3x1 a popular but much more calorie-dense choice. This high-protein, low-carb option is a favorite among dieters, but its custom nature requires careful calculation to determine the total caloric intake.
