Overview

About Histamine Liberators

Histamine liberators are foods that may prompt your body to release its own stored histamine even when they aren't histamine-rich — like strawberries and citrus.

Histamine liberators are foods that don't contain much histamine themselves but can trigger your body to release stored histamine. This can cause similar symptoms to high-histamine foods in sensitive individuals.

In the data

Where you will find histamine liberators

dark chocolate
  • High in histamine and a histamine liberator, a well-known migraine and flushing trigger
orange
  • A strong histamine liberator, so oranges can set off hives, itching or flushing even though the fruit is low in histamine itself
tomato
  • High for histamine and a strong liberator on top of that. Cooked, tinned and jarred tomato products grade worse than fresh fruit, with tomato sauce reaching our top histamine grade
tomato sauce
  • High in salicylates and a moderate histamine liberator, a double hit if you are aspirin-sensitive or histamine-intolerant

Examples

A few ingredients either way

Grading

How we grade histamine liberators

Every ingredient in the database carries one grade for histamine liberators, and this page, the checker and the app all read that same grade. It describes the ingredient as it is usually eaten. Portion size and preparation move it.

Safe443
Low201
Moderate106
High32
Avoid3

Practical

Working with histamine liberators

  • Space out these foods rather than eating several in one sitting.
  • Try eliminating one at a time to identify your triggers.
  • Avoid histamine liberators alongside high-histamine foods
  • Common liberators include citrus, strawberries, tomatoes, and chocolate
  • Your tolerance may vary based on overall histamine load
  • Keep a symptom diary to identify your personal triggers
  • Consider your total 'histamine bucket' - liberators add to it

Method

Test it with a diary

Most people find their own triggers by logging meals and symptoms for a few weeks and reading the result back. Three steps.

  1. 1Log every meal for a few weeks. Type it, say it out loud, or scan a barcode, and it lands as a list of ingredients.
  2. 2Rate how you feel through the day on whatever you are tracking, whether that is bloating, headaches, skin or sleep.
  3. 3Read the pattern back. Every ingredient you logged is scored against the days you felt worse, and the result ranks histamine liberators against everything else you eat.

Read next

Where to go next

References

Histamine Liberators sources

Where the histamine liberators grades come from: food composition databases, clinical guidelines and patient organisations.

4 sources from peer-reviewed research, regulatory bodies, and clinical guidelines.

Get started

Tracking histamine liberators?

Log what you eat and how you feel, and the app finds the pattern for you. Or look an ingredient up here first.