Is Firehouse Subs Gluten Free Hoagie Roll High in Histamine?

Firehouse Subs Gluten Free Hoagie Roll

Moderate histamine

This gluten-free hoagie roll is a starch blend raised with yeast and a touch of vinegar, landing it moderate.

Food here is usually assembled to order from components that were prepped earlier in the day, so it tends to be fresher than a drive-through and less fresh than cooking at home. Histamine builds up as protein foods sit, so how long the chicken or beef has been in the warmer matters as much as what is in the bowl. Treat the rating above as a starting point.

Gluten

A yeasted gluten-free bread with a starch blend, psyllium, and a little vinegar.

Yeast and vinegar — the added yeast and the vinegar are both moderate drivers, and together they set the roll's level.
The flour blend itself — the gluten-free flour blend also lands moderate, while the sunflower oil and fibers stay mild.

It works well for gluten-free eaters, though it is not the calmest histamine pick available.

This rating comes from Firehouse Subs' own published ingredient statement, read on August 11, 2026. Restaurant recipes vary by location and change over time, so always check the current listing: source 1, source 2. How we rate foods →

Firehouse Subs Gluten Free Hoagie Roll and Firehouse Subs are trademarks of their respective owners. This page is an independent histamine reference and is not affiliated with, endorsed by, or sponsored by the brand.