Is Texas Roadhouse Portobello Mushroom Sauce High in Histamine?

Texas Roadhouse Portobello Mushroom Sauce

High histamine

This mushroom sauce is high, driven by buttermilk, soy sauce, tomato 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.

Dairy Gluten Histamine Liberator

This is a creamy, savory sauce built on buttermilk and butter with soy sauce, soybeans, tomato concentrate, yeast extract, and a wheat-based thickener, and it lands high.

Soy sauce, yeast extract, and soybeans — these are fermented and concentrated savory ingredients that carry a lot of histamine, and the tomato concentrate is a classic liberator on top of that.
Buttermilk and wheat — the buttermilk is high, and the enriched wheat flour, malted barley, and hydrolyzed wheat gluten sit at moderate, so even the base adds to it.

A plain pan gravy or fresh butter over your steak would be a much lower-histamine choice.

This rating comes from Texas Roadhouse'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 →

Texas Roadhouse Portobello Mushroom Sauce and Texas Roadhouse 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.