Tombstone Original Pepperoni Pizza
This frozen pepperoni pizza is high in histamine, mainly from tomato paste and cured pepperoni.
Tombstone Original Pepperoni Pizza is high-histamine and best avoided if you have histamine intolerance or MCAS. It stacks several problem toppings: cured pepperoni, aged mozzarella, and tomato paste, with tomato acting as a histamine liberator on top of that.
Why tombstone original pepperoni pizza is rated high
This pizza is a pile-up of the exact things HIT reacts to. The pepperoni is a cured, fermented, aged meat, and curing and aging are prime conditions for histamine-forming bacteria to work on the meat's protein. The mozzarella is a real cheese, and cheeses carry some histamine from their culturing. Then there's the tomato paste: tomato is a classic histamine liberator, meaning it can prod your body into releasing its own stored histamine even though the tomato itself may not be loaded with it. So you get histamine that's already in the food (pepperoni, cheese) plus a liberator (tomato) all in one slice, which is why a 'fresh from the freezer' product still gets flagged.
What changes your risk
- The pepperoni is the anchor — it's cured and aged meat, so it runs high no matter how fresh the box looks, and heating it in the oven does not remove histamine that already formed during curing.
- Tomato paste is a liberator, not just a source — even a small amount of concentrated tomato can trigger your body to release its own histamine, so scraping it off does not make the rest safe.
- Real mozzarella adds to the load — the low-moisture part-skim mozzarella carries some histamine from culturing; the 'imitation mozzarella' on the label is a separate topping and won't offset that.
- Leftovers make it worse — reheating slices that sat in the fridge means the pepperoni and cheese, both protein-rich, have had more time and warmth for bacteria to add histamine.
- Portion won't rescue it — because several ingredients are problematic at once, a smaller slice still delivers cured meat, cheese, and a liberator together.
Lower-histamine alternatives
There's no low-histamine version of this specific product, but you can rebuild the pizza idea from safer parts. Make a simple flatbread or pizza base and skip the tomato: use a thin layer of olive oil with fresh basil and dried garlic, or a puree of roasted (fresh, not paste) bell pepper if peppers agree with you. For toppings, freshly cooked chicken breast is a much gentler protein than pepperoni, and fresh vegetables like zucchini or arugula work well. The cheese is the hardest swap because most cheeses carry histamine; some people do better with a very fresh ricotta, but there is no truly safe aged-style cheese here.
How to lower the risk
The honest move with this product is to leave it in the freezer aisle if you're managing histamine, since the pepperoni, cheese, and tomato are all working against you at once. If you want the pizza experience, batch-make your own from fresh ingredients so you control every topping: a homemade crust, olive oil and herbs instead of tomato paste, and freshly cooked poultry instead of cured meat. Eat what you make the same day rather than saving slices, since the meat and cheese are protein-rich and best fresh.
Common questions
Is it the tomato or the pepperoni that's the problem?
Both, in different ways. The pepperoni carries histamine from curing and aging, while the tomato paste is a liberator that can trigger your body to release its own histamine. Together they make this a clear high-histamine food.
Can I just scrape off the pepperoni and eat the rest?
It won't make it safe. The tomato paste is still a liberator and the mozzarella still carries histamine, so removing one topping only lowers, not removes, the problem.
Does cooking the pizza longer or hotter reduce the histamine?
No. Heat can kill bacteria but does not break down histamine that already formed in the cured pepperoni and cheese, so a well-baked pizza still carries it.
Are the leftovers okay the next day?
Reheated leftovers tend to be worse, not better. The pepperoni and cheese are protein-rich, so time in the fridge gives bacteria more chance to add histamine.
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 →
Tombstone Original Pepperoni Pizza and Tombstone 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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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)