Big 9 allergens introduction baby: The “Big 9” Allergens: When & How to Introduce Them Safely to Your Baby (LEAP Protocol Guide)
Written by Dr. Emily Hartwell, MD, FAAP | Medically reviewed June 15, 2026 | Last updated July 10, 2026 For decades, parents were told to delay introducing allergenic foods. The American Academy of Pediatrics recommended waiting until age 2 for dairy, age 3 for eggs, and even longer for peanuts and tree nuts. The logic […]








