What's the Healthiest Sub at Firehouse Subs?
                                
                                
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                                    4 min read                                
                            
                                According to nutritional data, many fast-food subs can contain over half a person's recommended daily sodium intake in a single meal. While Firehouse Subs is known for its hearty, fully-loaded sandwiches, it's possible to find or create a much healthier option. So, what's the healthiest sub at Firehouse Subs? Your best bet is to customize a small sub with lean protein and plenty of vegetables.