Per the American Academy of Pediatrics* : “There is no evidence that waiting to introduce baby-safe (soft), allergy-causing foods, such as eggs, dairy, soy, peanuts, or fish, beyond 4 to 6 months of age prevents food allergy. If you believe your baby has an allergic reaction to a food, such as diarrhea, rash, or vomiting, talk with your child's doctor about the best choices for the diet.” 


*Source: 1/16/18 https://www.healthychildren.org/English/ages-stages/baby/feeding-nutrition/Pages/Switching-To-Solid-Foods.aspx