About us

About HistamineGuide

An independent guide to histamine intolerance, mast cell activation and the low-histamine diet, written in plain language and linked to the research behind it.

We tell you what the evidence shows, how strong it is, and where it is still uncertain. No hype, no miracle cures, and no personal treatment plans.

Who is Sarah Mitchell? Sarah Mitchell is the pen name of the HistamineGuide editorial team. It is not a real individual and not a medical qualification. We are not doctors, dietitians or nutritionists.

What you'll find on HistamineGuide

Symptoms

In-depth explainers on the symptoms histamine can trigger, and how to tell them apart from other conditions.

Diet & Foods

Practical food lists, meal plans and recipes that make low-histamine eating actually enjoyable.

Supplements

Evidence summaries for DAO enzymes, quercetin, probiotics and more, including what the research does and does not show.

Ready to start? Grab the free guide.

Symptom checklist, food list and a supplement overview, all in one PDF.

Download free →

Why a Pen Name?

We use one pen name so the site speaks with one consistent voice. We say so openly because on a health site you should know exactly who is, and who is not, behind what you read.

How We Work

  • Every medical claim is tied to a published source, and we link the key studies in the text.
  • We say how strong the evidence is: a clinical trial, a review, a lab study or expert opinion.
  • Food ratings come from one consistent food database, and we note that tolerance varies from person to person.
  • Supplement doses are only described as the amounts used in studies, never as a personal plan.
  • Articles that discuss symptoms, tests or supplements tell you when to see a doctor.
  • We update articles when the research changes or a reader reports a mistake.

The full process is described in our editorial policy.

About This Site: Key Facts

  • Byline: Sarah Mitchell, the pen name of the HistamineGuide editorial team.
  • Topics: histamine intolerance, mast cell activation, DAO enzyme, low-histamine diet and recipes.
  • Sources: peer-reviewed research (PubMed, Nutrients, Clinical and Translational Allergy and others) and guidance from allergy and gastroenterology societies.
  • Tools: free interactive tools, including a histamine load calculator, a histamine intolerance quiz and a low histamine elimination diet plan.
  • Independence: some pages may contain affiliate links and we sell digital guides. This never decides what an article says. See our affiliate disclosure.
  • Medical position: HistamineGuide is an informational resource, not a clinical service. Please work with a qualified healthcare professional for diagnosis and treatment. See our medical disclaimer.
  • Contact: contact@histamine.guide

New to histamine intolerance? Start with the free starter guide.