Around 5–8% of UK Children Have a Food Allergy

The Food Standards Agency’s current training material estimates that 5–8% of UK children live with food allergy. This is an approximate prevalence range, not a new 2026 census. Food allergy involves the immune system and can cause anaphylaxis, a potentially life-threatening reaction.

Milk, eggs, peanuts, tree nuts, wheat and soya are among the foods that can cause childhood allergy. Some allergies resolve as children grow; others persist. Individual diagnosis and dietary advice should come from an appropriate healthcare professional.

Key Facts & Figures (Overview)

  • 5–8% is the approximate UK childhood food-allergy range cited by the FSA
  • 14 allergen groups must be declared when used as ingredients under food information rules
  • Food allergy differs from intolerance: symptoms and management need individual assessment
  • 1.23 to 4.04 per 100,000: UK food-anaphylaxis hospital admission rates rose between 1998 and 2018 in a national study
  • Historical admissions: those 1998–2018 rates do not measure current prevalence or individual risk of death
  • Milk and egg allergies can resolve during childhood, but do not assume a child has outgrown an allergy
  • Peanut and tree-nut allergies often persist and can cause severe reactions
  • Ingredient checks: review recipes and supplier labels whenever ingredients change
  • 81% relative reduction: the LEAP trial found lower peanut-allergy risk at age five with early regular peanut consumption among high-risk infants
  • Around six months: NHS guidance recommends introducing allergenic foods in suitable forms when starting solids, one at a time
  • Seek advice first if a baby has eczema, an existing allergy or a family history of allergy
  • Under five: do not give whole nuts because of choking risk; suitable finely ground nuts or nut butter are different
  • Emergency planning: schools should agree appropriate support and access to prescribed medicines with families and clinicians
  • Written information plus conversation: current FSA best practice for non-prepacked food; “Owen’s Law” is a campaign, not an enacted 2024 law

The Most Common Childhood Food Allergens

Cow’s milk allergy is an immune response to milk proteins. It differs from lactose intolerance. Removing dairy from a child’s diet requires suitable nutritional advice, and any reintroduction should follow the child’s clinical plan.

Egg allergy requires checking ingredients in foods such as cakes, mayonnaise and pasta. Some children can tolerate particular cooked forms, but a caterer should follow the individual plan rather than assume cooking makes egg safe.

Peanut allergy can cause severe reactions. Check ingredients and prevent cross-contact; small quantities can matter to an allergic person.

Tree nuts are a separate regulated allergen group from peanuts. Identify the specific nuts present and follow the child’s documented requirements rather than assuming all allergies are identical.

Wheat allergy is distinct from coeliac disease and other wheat-related conditions. A gluten-free claim does not by itself answer every question about wheat allergy.

Sesame was already a regulated allergen before Natasha’s Law. The October 2021 change concerned full ingredient lists, with allergens emphasised, on food prepacked for direct sale.

Children's Food Allergy in Educational Settings

In England, schools have duties to support pupils with medical conditions. The current statutory guidance and the child’s clinical advice should inform practical arrangements:

  • Individual planning: decide with parents and healthcare professionals whether an individual healthcare plan is needed and what it should contain.
  • Medicines and emergencies: make prescribed adrenaline devices accessible and ensure relevant staff know the agreed response and have appropriate training.
  • Catering: keep accurate ingredient-allergen information and communicate changes clearly to pupils, families and relevant staff.
  • Inclusive meals: free school meal provision does not remove the need to assess and meet an individual child’s allergy requirements safely.
  • School policies: ingredient restrictions can form part of a risk assessment, but a “nut-free” label is not a guarantee or a substitute for emergency planning.

Written by Food Safety Experts

This guide was produced by the team at Level 3 Food Hygiene Certificate, a UK provider of RoSPA-approved online food hygiene training. Food allergy management — including allergen awareness, cross-contamination prevention, and emergency response — is a core component of our Level 3 Food Hygiene Certificate, with specific relevance for supervisors and managers overseeing school and childcare catering.

Sources & References

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Mark McShane
Mark McShane
Health & Safety Training Specialist, Online CPD Academy

Mark writes about food safety, food hygiene and accredited online training for Level 3 Food Hygiene Certificate, part of Online CPD Academy.