Is histamine intolerance a treatable subtype of fibromyalgia? evidence and clinical implications—narrative review - Scorecard - MDSpire

Is histamine intolerance a treatable subtype of fibromyalgia? evidence and clinical implications—narrative review

  • By

  • João Protásio Netto

  • José Fábio Lana

  • Alexandre Parma

  • Fábio Ramos Costa

  • Rubens Martins de Andrade

  • Mariana Garcia Martins Castro

  • Claudia Tambelli

  • April 30, 2026

  • 0 min

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Clinical Scorecard: Exploring the Potential Link Between Histamine Intolerance and Fibromyalgia: A Narrative Review of Evidence and Clinical Significance

At a Glance

CategoryDetail
Condition
Key Mechanisms
Target PopulationPatients with fibromyalgia, particularly those with gastrointestinal symptoms, chronic pruritus, or treatment resistance, with emphasis on the prevalence of gastrointestinal symptoms.
Care Setting

Key Highlights

  • Clarify the clinical implications of the 74.5% prevalence of DAO deficiency-associated genetic variants.

Guideline-Based Recommendations

Diagnosis

    Management

      Monitoring & Follow-up

      • Monitor symptom severity using specific metrics such as the Fibromyalgia Impact Questionnaire.

      Risks

        Patient & Prescribing Data

        Fibromyalgia patients, especially those with gastrointestinal symptoms

        DAO supplementation may lead to significant improvements in pain and overall symptom severity

        Clinical Best Practices

        • Include patient education on histamine intolerance and its potential impact on fibromyalgia symptoms.

        References

        Original Source(s)

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