Is Starbucks Butter Croissant High in Histamine?

Starbucks Butter Croissant

High histamine

This croissant is high in histamine mainly because of the sourdough and fermented wheat in the dough.

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

It is a classic buttery croissant of wheat flour, butter, cream, and eggs.

Sourdough leads it — the dough uses sourdough and fermented wheat flour, which are high from fermentation and set the level here.
The rest is moderate to mild — the wheat flour and yeast sit at moderate, while the butter, cream, and eggs are milder.

Because the fermented dough is what pushes it up, a plain non-sourdough baked good is the lower-histamine route.

This rating comes from Starbucks' 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 →

Starbucks Butter Croissant and Starbucks 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.