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Papa Murphy's Mushrooms

Moderate histamine

Plain mushrooms are moderate in histamine, so worth keeping in mind.

This is sold raw and you bake it at home, which is the freshest case on this whole list. Nothing sits in a warmer, and you control how long it waits between the shop and the oven. Refrigerate it as soon as you get home and bake it the same day, because histamine builds up as protein foods sit whether that happens in a kitchen or in your fridge.

Papa Murphy's mushroom topping is moderate for histamine intolerance, not high. It is just mushrooms with nothing added, and mushrooms on their own sit at a moderate level on common histamine lists.

Why papa murphy's mushrooms are rated moderate

The verified ingredient list is a single word: mushroom. That is the good news and the whole story. Nothing here is cured, aged, or fermented, and there is no seasoning, oil, or sauce on the topping, which is why it stops at moderate instead of going higher. Mushrooms land at moderate on their own because they are a debated food on histamine lists: many people with histamine intolerance eat them without trouble, while others find they do not sit well, and mushrooms that have been processed or held for a while tend to be on the less comfortable side of that range. So the topping is moderate because of what a mushroom is, not because of anything done to it.

What changes your risk

  • The mushroom is the only factor — there is exactly one ingredient, so there is no hidden cheese, cured meat, or sauce pushing this up. What you see is what you get.
  • How the mushrooms were handled before they reach the pizza — mushrooms are moderate on their own, and ones that have been processed or sitting for a while tend toward the higher end of moderate, while fresher-looking mushrooms tend toward the lower end.
  • How long the built pizza sits — Papa Murphy's pizzas go home to be baked, so the topping spends time on the pie before it hits the oven. Baking it sooner rather than letting it sit around is the gentler path.
  • Portion — a moderate food is one where amount matters. A light scattering of mushrooms is a smaller load than a pizza piled with them.
  • What goes on next to it — the mushrooms themselves are moderate, but the rest of the build decides where the whole pizza lands, so pair them with lower items if you are sensitive.

Lower-histamine alternatives

If you want to keep the pizza lower, the Papa Murphy's components that score lower than mushrooms are Chicken, Onion Mix, and Zesty Herb Blend. Chicken is the lower protein choice if you are picking a meat, and Onion Mix or Zesty Herb Blend can add flavor without the moderate mushroom load. Mushrooms are not a liberator and not high, so they are not in the same category as cured or fermented toppings; they simply sit a step above those lower items.

How to lower the risk

Since this is a build-to-order counter, you choose each component. The mushrooms are a single-ingredient topping, so there is nothing to ask for without; you either add them or skip them. If you are sensitive but want them, go with a lighter amount, build the rest of the pizza from lower items like Chicken, Onion Mix, and Zesty Herb Blend, and bake the pizza soon after you get it home rather than letting it wait.

Common questions

Are mushrooms on pizza high in histamine?

Not high; they are moderate. Papa Murphy's topping is plain mushroom with nothing added, and mushrooms on their own sit at a moderate level.

Why are mushrooms moderate and not low?

Mushrooms are a debated food on histamine lists. Many people tolerate them, some do not, and processed or longer-held mushrooms tend toward the higher end, so they sit in the middle.

Does baking the pizza change anything?

Baking does not lower histamine that is already there. Getting the pizza into the oven soon after it is built, rather than letting it sit, is the more helpful part.

What lower toppings can I pick instead at Papa Murphy's?

Chicken, Onion Mix, and Zesty Herb Blend all score lower than the mushrooms on the published list.

This rating comes from Papa Murphy's own published ingredient statement, read on August 10, 2026. Restaurant recipes vary by location and change over time, so always check the current listing: source 1, source 2. How we rate foods →

Papa Murphy's Mushrooms and Papa Murphy's 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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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)