Is Firehouse Subs Chicken Corn Chowder High in Histamine?

Firehouse Subs Chicken Corn Chowder

High histamine

This corn chowder is high in histamine from yeast extract, soy protein, lime juice, and chicken stock.

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.

Dairy Histamine Liberator

This chowder blends corn, potatoes, chicken, cream, peppers, and onions in a seasoned, stock-based creamy base.

Concentrated savory bases — the yeast extract, soy protein concentrate, and chicken stock all run high and stack the flavor base with histamine.
Lime and peppers — lime juice concentrate is a classic liberator, and the red and jalapeno peppers sit at moderate, adding to the load, while the corn, potatoes, and cream are milder.

A simpler cream-based soup like the chicken and dumpling would be the lower-histamine pick here.

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 Chicken Corn Chowder 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.