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Bar Harbor New England Clam Chowder Soup

High histamine

This clam chowder is high in histamine, driven by the clam stock and clams.

Yes, this is a high-histamine food. Clams are shellfish, and shellfish plus shellfish stock are among the higher-histamine seafood items, so a creamy clam chowder built around them sits firmly in the high range.

Why bar harbor new england clam chowder soup is rated high

Shellfish like clams are rich in protein, which means they carry plenty of histidine, the building block that certain bacteria convert into histamine after the shellfish is harvested. That conversion happens fast if the catch is not chilled hard and quickly, and it is invisible: you cannot smell or taste it. A chowder concentrates the concern because it is built on both the shellfish and a shellfish stock, and any histamine that formed before canning is already locked in. Cooking and canning kill bacteria but do not undo histamine that has already formed.

What changes your risk

  • Freshness before it was canned — the single biggest factor is how cold and how fast the shellfish was chilled after harvest. Any warm handling before canning lets bacteria make histamine, and no later step removes it.
  • Shellfish stock concentrates it — a broth made from shellfish carries whatever formed in those shells and trimmings, so a stock-based soup tends to run higher than a single piece of very fresh fish.
  • Canning locks in, it does not build — a properly sealed can does not keep making histamine on the shelf, but it also cannot lower what was already there when it was sealed.
  • Once opened, treat it like fresh seafood — after you open the can, leftovers of a protein-rich, shellfish-based soup should be chilled fast and not held warm, since warm holding of seafood can raise histamine further.
  • Cooking or reheating will not fix it — heat destroys bacteria but leaves existing histamine intact, so warming a bowl does nothing to make it lower-histamine.

Lower-histamine alternatives

There is not a truly low-histamine version of clam chowder, because the shellfish and shellfish stock are the whole point of the dish. If you want something warm and comforting, a homemade soup built from very fresh or frozen-at-sea white fish cooked the same day, with potato, and a splash of fresh cream, is a far lower-histamine direction. Simpler still, a vegetable and potato soup with fresh herbs skips the seafood risk entirely. If you specifically want seafood, a piece of very fresh or frozen-at-sea white fish, cooked promptly, is a better bet than any canned shellfish soup.

How to lower the risk

For this kind of product there is no preparation trick that lowers the histamine, since it is set before the can is sealed. If you do have it in the pantry, keep the sealed can as intended, and once opened, refrigerate any leftovers quickly in a covered container rather than leaving the pot out. Note it also carries dairy and gluten, which matter if you are sensitive to those on top of histamine. For your own cooking, the reliable path is buying seafood that was frozen-at-sea or landed the same day and cooking it right away rather than letting it sit.

Common questions

Are clams high in histamine?

Clams and other shellfish tend to run high, mainly because they are protein-rich and histamine forms quickly if they are not chilled hard and fast after harvest. Canned or cooked clams do not lose that histamine.

Does the canning process make clam chowder safe for histamine intolerance?

No. Canning kills bacteria and stops further buildup in the sealed can, but it cannot remove histamine that formed before sealing, so a canned shellfish soup stays high.

Is a fresh white fish soup lower in histamine than clam chowder?

Generally yes, if the fish is very fresh or frozen-at-sea and cooked the same day. A single fresh white fish is usually lower risk than a canned soup built on shellfish and shellfish stock.

Can I make clam chowder lower in histamine by cooking it longer or reheating carefully?

No. Longer cooking and reheating do not lower histamine that already exists; they only add heat. The level is set by the shellfish freshness before it was canned.

This rating is derived from the product's commonly listed ingredients, which can change over time, so always check the current label. How we rate foods →

Bar Harbor New England Clam Chowder Soup and Bar Harbor are trademarks of their respective owners. This page is an independent histamine reference and is not affiliated with, endorsed by, or sponsored by the brand.

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Foods With High Histamine Levels Why Freshness Matters More Than Food Lists Why Leftovers Can Trigger Histamine Symptoms What Are Histamine Liberators?

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References

  1. SIGHI Food Compatibility List — SIGHI (2026)
  2. Histamine and histamine intolerance — Maintz & Novak (2007)
  3. Histamine Intolerance: The Current State of the Art — Comas-Basté et al. (2020)
  4. Low-Histamine Diets: Is the Exclusion of Foods Justified by Their Histamine Content? — Sánchez-Pérez et al. (2021)
  5. Histamine Intolerance: Symptoms, Diagnosis, and Beyond — Jochum (2024)
  6. Guideline on management of suspected adverse reactions to ingested histamine — Reese et al. (2021)