As recently as the early 2000s, it was widely accepted that babies at risk for food allergies should avoid common allergenic solids until 1 year of age or older. However, advice to delay the introduction of peanut and other allergenic foods was not based on evidence from rigorous scientific studies.  

Data from rigorous randomized controlled trials now clearly show that delaying introduction of commonly allergenic foods will not prevent food allergies and may even increase the risk for food allergy development.