Sonic Tortilla
A Sonic tortilla is high in histamine, mainly from the sodium metabisulfite it is made with.
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.
A Sonic tortilla is a simple wrap of enriched flour, palm oil, and tortilla mix with an added preservative.
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Sodium metabisulfite — this sulfite preservative is the high driver here, and it is what pushes the whole tortilla up.
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Enriched flour — the wheat base sits at moderate on its own, so the sulfite is really what sets the level, not the flour.
A plainer fresh bread base without the sulfite preservative would be the lower-histamine route.
This rating comes from Sonic's 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 →
Sonic Tortilla and Sonic 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.
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For educational purposes only. Not medical advice. Consult a healthcare professional for personal guidance.
References
- SIGHI Food Compatibility List — SIGHI (2026)
- Histamine and histamine intolerance — Maintz & Novak (2007)
- Histamine Intolerance: The Current State of the Art — Comas-Basté et al. (2020)
- Low-Histamine Diets: Is the Exclusion of Foods Justified by Their Histamine Content? — Sánchez-Pérez et al. (2021)
- Histamine Intolerance: Symptoms, Diagnosis, and Beyond — Jochum (2024)
- Guideline on management of suspected adverse reactions to ingested histamine — Reese et al. (2021)