Histamine Tracker
Oregano
Oregano is low in histamine and not a known liberator, though it's potent enough that large concentrated amounts are rarely tested.
Oregano is a widely used culinary herb that doesn't contain notable histamine and isn't flagged as a DAO blocker or histamine releaser.
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Dried vs. fresh — dried oregano is significantly more concentrated than fresh; it's still considered low-histamine, but it's used in much smaller quantities, which naturally limits overall intake
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Found in many blends — oregano is a core ingredient in Italian seasoning, pizza seasoning, and Greek spice blends; if a whole dish feels problematic, it's worth looking at other ingredients like tomato sauce or aged cheese before attributing it to the oregano
Oregano used in typical cooking amounts is broadly considered a low-concern seasoning.
Track your reactions to oregano in Histamine Tracker. Log meals and symptoms to spot the patterns that matter for your body.
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)