Is Jimmy John's Smoked Ham High in Histamine?

Jimmy John's Smoked Ham

High histamine

Jimmy John's Smoked Ham is high because cured ham is a high-histamine meat.

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 ham with water, salt, dextrose, tapioca starch, cultured celery juice, and sea salt.

Ham leads it — cured meats build up histamine during curing, so ham runs high and sets the level here.
The rest is milder — the salt, dextrose, and starch are not the problem, but they cannot bring down what the cured ham contributes.

Curing is the key thing to know, so a fresh, uncured protein is the way to go lower.

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 Smoked Ham 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.