Allergen workflow
Introducing allergens to baby
Common allergen foods can be introduced as solids are introduced when baby is developmentally ready, but form and context matter. Use a baby-appropriate texture, avoid choking shapes such as whole nuts or sticky globs, try first servings when baby is well, and ask a clinician first for severe eczema, egg allergy, known allergy, or previous reaction concerns.
This guide supports planning and observation; it does not diagnose, treat, or personalize allergy care.Step-by-step guide
-
1
Check readiness and history
Start from readiness for solids, then ask a pediatric clinician first if baby has severe eczema, egg allergy, a known food allergy, or previous reaction concerns.
-
2
Pick one allergen food
Use one new food at a time at first so it is easier to notice whether a problem appears.
-
3
Use a baby texture
Thin nut butter into another food, cook egg fully, soften wheat foods, moisten fish, and avoid whole nuts, thick sticky spoonfuls, or dry crumbly pieces.
-
4
Choose a calm time
Offer the first small serving when baby is well and you can observe comfortably, not when the meal is rushed.
-
5
Record what happened
Write the food, form, date, amount, and any symptoms or concerns you want to discuss with a clinician.
At-a-glance checks
CDC lists milk, eggs, fish, shellfish, tree nuts, peanuts, wheat, soybeans, and sesame.
Severe eczema, egg allergy, known food allergy, or previous reaction concerns need clinician input.
The allergen plan still has to pass choking-shape and texture checks before serving.
Use calm first servings and keep notes for any symptoms or questions.
Allergen-introduction mistakes to avoid
- Offering whole nuts, thick nut-butter globs, chewy shellfish pieces, dry egg, or dry fish as first forms.
- Trying several new allergen foods together before baby has practiced them individually.
- Starting a first allergen serving when baby is sick, very tired, or supervision is rushed.
- Skipping clinician guidance for severe eczema, egg allergy, known allergy, or previous reaction concerns.
- Using this guide to interpret symptoms instead of seeking pediatric guidance when concerns appear.
Quick questions
Which foods are common allergens?
CDC lists milk, eggs, fish, shellfish, tree nuts, peanuts, wheat, soybeans, and sesame as potentially allergenic foods.
Should peanut butter be served from a spoon?
No. Thick peanut butter can be sticky and hard to manage. Use a thin, smooth form mixed into another baby-appropriate food if peanut is appropriate for baby.
Sources reviewed
- CDC: When, What, and How to Introduce Solid Foods Retrieved 2026-06-17
- HealthyChildren.org / AAP: When to Introduce Egg, Peanut Butter & Other Common Food Allergens to a Baby Retrieved 2026-06-17
- HealthyChildren.org / AAP: Starting Solid Foods Retrieved 2026-06-17
- CDC: Choking Hazards Retrieved 2026-06-17