Fermented foods
Fermentation naturally produces histamine as bacteria break down proteins, making aged and fermented foods some of the highest sources around.
Fermentation is essentially a controlled bacterial process — and those bacteria produce histamine as a byproduct of breaking down proteins.
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More time, more histamine — the longer something ferments or ages (think sauerkraut, kimchi, aged cheese, cured meats), the more histamine tends to accumulate
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Wide range across products — not all fermented foods are equal; a lightly fermented yogurt may be much lower than a long-aged salami or a pungent blue cheese
Freshly made fermented products generally contain less histamine than shelf-stable, long-fermented ones — so production method and age both matter.
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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)