Histamine Tracker
Leek
A mild allium vegetable that's generally low in histamine and well-tolerated, unlike some of its more reactive relatives.
Leeks are in the same family as onions and garlic, but don't carry the same histamine concerns — they're generally considered a low-risk choice.
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Compared to onions — onions are sometimes mentioned in the context of histamine intolerance, but leeks tend to be much better tolerated and are not typically flagged in the same way
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How you prepare them matters — fresh leeks are the safest bet; pickled or fermented preparations would significantly raise the histamine level
Using fresh leeks as a gentle flavor base is a practical swap for more reactive aromatics.
Track your reactions to leek 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)