Is Subway Cheddar Cheese Sauce High in Histamine?

Subway Cheddar Cheese Sauce

High histamine

Subway's Cheddar Cheese Sauce is high in histamine because of the aged cheddar cheese.

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

This is a warm cheese sauce made from water, cheddar cheese, milk, whey, and a bit of paprika.

Cheddar leads — cheddar is an aged cheese, and aging is what builds histamine, which makes this sauce high.
Paprika adds some — the paprika sits at moderate, but it is the aged cheddar that sets the top level here.

If you want to keep things lower, skipping this sauce and using plain oil is the way to go.

This rating comes from Subway's own published ingredient statement, read on August 10, 2026. Restaurant recipes vary by location and change over time, so always check the current listing: source 1, source 2. How we rate foods →

Subway Cheddar Cheese Sauce and Subway 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.