How Many Calories is a 4x1 Protein Style from In-N-Out?
                                
                                
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                                    5 min read                                
                            
                                According to nutritional databases, a 4x1 Protein Style from In-N-Out, which replaces the bun with lettuce and includes four beef patties and one slice of cheese, typically contains around 630 calories. However, this number can fluctuate depending on whether you add extra toppings or condiments to your burger.