Food Intolerance

Overview of non-allergic food sensitivities.

Reviewed by Dr Kola Tytler MBBS CertHE MBA MRCGP (General Practitioner)
Last reviewed: 21 October 2025
GastroenterologyAllergyNutrition

Clinical Guidelines

NICE guideline [CG116]: Food allergy in under 19s: assessment and diagnosis
National
2020 World Society of Emergency Surgery updated guidelines for the diagnosis and treatment of acute cholangitis (with reference to food intolerance in clinical assessment)
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European guideline on indications, performance, and clinical impact of hydrogen and methane breath tests in adult and pediatric patients: An official guideline of the European Society of Neurogastroenterology and Motility (ESNM) and United European Gastroenterology (UEG)
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Fish and Fishery Products Hazards and Controls Guidance (Chapter 19: Undeclared Major Food Allergens and Certain Food Intolerance Causing Substances and Prohibited Food and Color Additives)
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Food Allergens/Gluten-Free Guidance Documents & Regulatory Information (Chapter 19 – Allergens and Food Intolerance Substances)
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Guidelines for the Diagnosis and Management of Food Allergy in the United States: Report of the NIAID-Sponsored Expert Panel
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NICE clinical guideline 86: Food allergy in children and young people: Diagnosis and assessment of food allergy in children and young people in primary care and community settings
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