Histamine Tracker
Clams
Clams are high in histamine due to rapid bacterial histamine formation after harvest, with freshness being especially important for how much histamine you're actually getting.
Like other bivalve shellfish, clams accumulate histamine quickly through bacterial activity once harvested.
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Rapid spoilage drives histamine — clams are prone to fast bacterial histamine formation after harvest; dead or poorly stored clams can have very high levels even before they smell off
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Freshness matters enormously — clams that are alive right up until cooking typically carry less accumulated histamine than those that have been sitting
Buying clams live from a trusted fishmonger gives you the best chance of a lower-histamine experience.
Track your reactions to clams 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)