Is Tim Hortons Blueberry Sour Cream Donut High in Histamine?

Tim Hortons Blueberry Sour Cream Donut

High histamine

This donut is high, driven by sour cream and defatted soy flour, plus the enriched flour base.

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.

Dairy Gluten Histamine Liberator

This is a cake-style donut made with enriched flour, shortening, sugar, sour cream, and soy flour, topped with sprinkles.

Sour cream — cultured dairy carries histamine from fermentation, and it is the top driver pushing this donut high.
Defatted soy flour and the wheat base — the soy flour is high, while the enriched flour, soybean oil, and wheat starch each run moderate, so several parts stack against it.

With this many drivers built into the recipe, a different treat on the menu is the easier path down.

This rating comes from Tim Hortons' 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 →

Tim Hortons Blueberry Sour Cream Donut and Tim Hortons 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.