Food Allergens

The major childhood food allergens

• Cow's milk — one of the most common triggers in infancy, usually outgrown by school age
• Egg — common in early childhood, often outgrown over time
• Peanut & tree nuts — can appear early and are more likely to persist lifelong
• Wheat
• Soy
• Fish & shellfish — can appear at any age and tend to persist

Conditions food allergens can trigger

Reactions range from hives and worsening eczema to gut symptoms, and in the most severe cases, anaphylaxis. The exact pattern depends on the child and the amount consumed.

Why guessing the trigger is risky

Parents commonly identify the wrong food based on timing coincidence, or unnecessarily restrict multiple foods 'just in case,' which can affect a growing child's nutrition. Equally, a real trigger can be missed if it's hidden in a mixed dish. This is why a structured allergy history plus skin prick testing — and a supervised oral food challenge where indicated — is the accurate path, not elimination-by-guesswork.

Living with a confirmed food allergy

• Careful label reading for the confirmed allergen and its aliases
• Clear communication with school, family and caregivers about the trigger
• A written emergency plan, including antihistamine and adrenaline auto-injector if prescribed
• Working with a dietitian if multiple foods are restricted, to protect growth and nutrition
• Periodic reassessment, since milk and egg allergy are frequently outgrown