Is Firehouse Subs Seasoned Chicken Breast High in Histamine?

Firehouse Subs Seasoned Chicken Breast

High histamine

This seasoned chicken breast is high in histamine from the chicken itself.

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.

This is cooked chicken breast with glucose solids, rice starch, salt, sodium phosphate, and spices.

Chicken breast is the driver — the seasoned, pre-cooked chicken here reads high in histamine, and it is the main component so it sets the level.
The seasonings are milder — the rice starch, glucose solids, salt, and spices are gentler on their own, so it is the chicken carrying the rating rather than the seasoning blend.

If you are watching histamine, a fresher unseasoned protein is the gentler route.

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 Seasoned Chicken Breast 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.