Is Tim Hortons Sugar Loop High in Histamine?

Tim Hortons Sugar Loop

Moderate histamine

This glazed yeast donut is moderate, mostly from the enriched flour, yeast, and oils.

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.

Gluten

A Sugar Loop is a fried yeast-raised donut built on enriched flour with sugar, whey, and a couple of oils, and those base ingredients set a moderate level.

The dough drives it — enriched flour, wheat starch, and yeast each land moderate, which is what keeps this from being low.
The oils add to it — soybean oil is moderate too, while the sugar and whey glaze parts are milder.

It sits in the middle of the pack, so a plainer base is the way to go lower.

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 Sugar Loop 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.