Is Jimmy John's Shaved Parmesan Cheese High in Histamine?

Jimmy John's Shaved Parmesan Cheese

High histamine

Shaved parmesan is high in histamine because it is a long-aged hard 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 parmesan made from cultured pasteurized part-skim milk, salt, and enzymes.

Long-aged parmesan — parmesan is aged for a long time, and that extended aging is exactly what pushes histamine high.
Simple ingredient list — the milk, salt, and enzymes are just the cheese itself, so the aging is the reason it lands high.

A fresh cheese is a gentler choice than a hard, aged one.

This rating comes from Jimmy John'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 →

Jimmy John's Shaved Parmesan Cheese and Jimmy John's 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.