Introducing Allergens Safely
Early allergen introduction infants guidance has shifted considerably in recent years. Research now shows that introducing common allergenic foods from around six months (not avoiding them) may actually lower allergy risk.
The eight major allergens to introduce deliberately include eggs, peanuts, tree nuts, wheat, soy, fish, shellfish, and dairy.
How to do it safely:
- Introduce one new food every three days. This "three-day rule" lets you identify any reaction before adding another new ingredient.
- Start with a very small amount (a quarter teaspoon or less) and watch for 30 to 60 minutes.
- Offer allergens during a meal you can monitor, not just before bedtime.
- If there is no reaction after a few successful exposures, continue offering that food regularly.
- A family history of food allergy or eczema does not mean you must avoid allergens, but discuss timing with your pediatrician first.
Signs of an allergic reaction include hives, swelling of the lips or face, vomiting, unusual fussiness, or difficulty breathing. If you see these, seek medical help immediately. Report adverse events to your healthcare provider or the relevant regulatory authority.