How We Research and Write at HistamineGuide

Every article on HistamineGuide is written by Sarah Mitchell, NTC — a nutritional therapy consultant who has lived with histamine intolerance since 2018. This page explains how we source, write, fact-check, and update our content so you can evaluate it with full transparency.

Our editorial standards

All articles are written based on peer-reviewed research indexed in PubMed, clinical guidelines from organisations such as EAACI and DGAKI, and where relevant, direct clinical experience working with people managing histamine intolerance. We do not publish content based on anecdote alone, and we distinguish clearly between what the evidence shows and what is currently theoretical or contested.

What sources do we use?

• Peer-reviewed journals indexed in PubMed (preferred: systematic reviews and meta-analyses)
• Clinical guidelines from EAACI, DGAKI, and equivalent national allergy and gastroenterology bodies
• Textbooks and reference works in nutritional biochemistry and clinical nutrition
• We do not use: anonymous blogs, forums, social media, or sources without verifiable authorship

How are articles reviewed and updated?

Each article is reviewed at least once per year. When new research is published that materially affects our recommendations, we update the relevant article within 30 days. The date of last update is displayed at the top of every article. Significant updates are noted inline with an “Updated [date]” notation explaining what changed and why.

What is our corrections policy?

If a reader identifies a factual error, we investigate within 48 hours. Confirmed errors are corrected and noted transparently in the article. To report an error, contact us at: contact@histamine.guide.

Medical disclaimer

Content on HistamineGuide is for informational purposes only and does not constitute medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider — such as a GP, gastroenterologist, allergist, or registered dietitian — before making changes to your diet, starting supplements, or beginning an elimination protocol.

About the author

Sarah Mitchell holds a Nutritional Therapy Certificate (NTC) from the Institute for Integrative Nutrition and has spent eight years researching histamine intolerance, DAO enzyme deficiency, and gut health. She founded HistamineGuide after her own diagnosis to provide the clear, evidence-based resource she wished had existed. Read Sarah’s full biography →