The History and Availability of Subway's Low-Carb Bread
Subway began testing a one-net-carb bread called Hero Bread™ in partnership with Hero Labs in a few U.S. markets in late October 2021. The initial test cities included Savannah, GA; Des Moines, IA; Colorado Springs, CO; and Boise, ID. Hero Bread was developed to appeal to customers following low-carb and keto diets.
The initial Hero Bread had one gram of net carbohydrates per six-inch serving and was endorsed by Tom Brady. However, a national rollout didn't happen after the initial tests. In June 2022, Hero Bread became available in over 1,600 locations, mainly in large metro areas like New York City, San Diego, and Atlanta, but it was not added as a permanent national item. As of 2025, its availability remains inconsistent, and customers should check with their local Subway to see if they carry it.
Nutritional Comparison: Hero Bread vs. Other Options
Hero Bread offers nutritional advantages for those on a low-carb diet compared to standard Subway breads. It achieves its low net carb count by using a blend of protein and fiber instead of traditional flour. A comparison of Hero Bread to some other Subway bread options for a six-inch serving shows Hero Bread's much lower net carbohydrate count and higher fiber content {Link: Hip2Keto https://hip2keto.com/tips/subway-keto-dining-guide/}.
Navigating Subway's Menu for Low-Carb Options
If Hero Bread isn't available, Subway still provides ways to create low-carb meals. Avoiding bread is the most effective approach. Consider alternatives like Protein Bowls or Salads. You can build your own salad or protein bowl with lettuce, spinach, protein, and low-carb vegetables. Some locations may wrap your sandwich fillings in lettuce upon request.
To build a low-carb meal, choose the right ingredients and be mindful of sauces. Tips for optimal low-carb results include selecting proteins like Rotisserie-Style Chicken or Roast Beef, loading up on low-carb vegetables, and choosing sauces like oil and vinegar or ranch. Healthy fats like mayonnaise and avocado are also good additions.
The Future of Low-Carb Fast Food
Subway's experience with Hero Bread highlights the demand for healthier options in fast food. While the limited rollout was disappointing for some, it demonstrated consumer interest in low-carb products. Other fast-food chains are also exploring similar options as demand for healthy, customized meals grows.
Conclusion
While the availability of Hero Bread at your local Subway is not guaranteed, it did exist during testing and may still be found in some locations. For low-carb diners, alternatives like Protein Bowls, salads, or lettuce wraps are excellent ways to enjoy a low-carb meal at Subway. Check the Subway store locator or contact your local franchise for current Hero Bread availability.