Is Sonic Fryer Shortening High in Histamine?

Sonic Fryer Shortening

Moderate histamine

Sonic's fryer shortening is soybean oil, which lands at a moderate histamine level.

Fast food is cooked in batches and held warm rather than made when you order it, so it is rarely as fresh as something cooked at home. That matters here because histamine builds up as protein foods sit, which means the same item can affect you differently depending on how long it waited.

This is simply the soybean oil used for frying, with nothing else added.

Soybean oil — the oil itself is rated moderate, which is the single thing setting this level.
It touches the fried items — anything cooked in it picks up that moderate rating, so fried menu pieces inherit it even if the food itself is milder.

If you want lower, choosing a non-fried item sidesteps the shortening altogether.

This rating comes from Sonic's own published ingredient statement, read on August 23, 2026. Restaurant recipes vary by location and change over time, so always check the current listing: source 1, source 2. How we rate foods →

Sonic Fryer Shortening and Sonic 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.