Is IHOP Impossible Burger Patty High in Histamine?

IHOP Impossible Burger Patty

High histamine

The Impossible patty is high in histamine, driven by soy protein concentrate and yeast extract.

Most of this is cooked to order, which is the best case for histamine. Even so, a restaurant kitchen preps ahead and holds things warm through a service, so freshness varies more than it would at home. The rating above comes from the chain's published ingredients. If a dish is borderline for you, asking how it is prepared tells you more than the menu does.

Histamine Liberator

This plant-based patty is built from soy protein, sunflower and coconut oils, and various flavorings and binders.

Soy protein concentrate and yeast extract — both are high, and the yeast extract in particular is a concentrated savory ingredient that carries a lot of the load.
Soybean oil blend — the liquid and hydrogenated soybean oil adds a moderate note on top of the high soy and yeast ingredients.

These are core to the patty, so there is no tweak. A fresh beef patty on the same menu tends to be a lower-histamine base.

This rating comes from IHOP's 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 →

IHOP Impossible Burger Patty and IHOP 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.