Low-Carb Options at Firehouse Subs
Low-carb eating supports better blood sugar control — a core goal for most GLP-1 users. These Firehouse Subs items contain 15g net carbs or fewer.
Quick answer
The first 3 low carb results at Firehouse Subs are Firehouse Subs Oil & Vinegar (251 calories, 0g protein), Firehouse Subs Black Olives for Salad (25 calories, 0g protein), and Firehouse Subs Pickle Spear (5 calories, 0g protein).
Compare serving-level nutrition in the table below; formulations and serving sizes can change.
What this Firehouse Subs comparison shows
This page compares 24 currently indexed low carb Firehouse Subs items. Their GLP-1 Food Scores range from 57 to 94, with a median of 68. The highest-ranked result is Firehouse Subs Oil & Vinegar at 58/100, based on its listed serving-level nutrition.
For the nutrient defining this list, values run from 0g to 11g; the median is 7g. Serving sizes and formulations can differ, so open an item before ordering and confirm current details with the restaurant.
Results use the published scoring methodology and nutrition source policy. This is a nutrition comparison, not medical advice.
How to interpret this low carb list
24 of 70 indexed Firehouse Subs records (34%) meet this page’s numeric screen. Inclusion only means that the listed serving satisfies the category rule; it does not establish that the item is a complete meal, medically appropriate, well tolerated, or better than every excluded item.
Results remain ordered by the full six-factor GLP Food Score rather than by net carbs alone. That distinction matters because two qualifying items can differ substantially in protein, net carbohydrates, sugar, fiber, total fat and calories. Use the comparison table to shortlist options, then open the item record to verify its serving basis, source status, tradeoffs and current restaurant details.