Histamine Tracker
Fish oil
Fish oil comes from oily fish — a high-histamine source — and freshness and processing quality significantly affect how well it's tolerated.
Fish accumulates histamine quickly after being caught, and that carries through into fish oil supplements and culinary oils.
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Source material — oily fish like anchovies, sardines, and mackerel are among the higher-histamine foods, and fish oil derived from them can carry that histamine load depending on how it was processed
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Freshness and quality — highly refined, pharmaceutical-grade fish oils may contain less histamine than lower-quality versions, since poor handling and bacterial activity during processing can increase histamine content
Checking for a reputable brand with clear sourcing and freshness standards is worth doing if fish oil is a regular part of your routine.
Track your reactions to fish oil 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)