In 2015, the AAP, along with other groups of experts, officially released a statement that «new research has shown that early introduction of peanuts into the diet of infants at high risk of peanut allergy can play a role in the prevention of peanut allergies.» (babieslounge.com)
In January 2017 guidelines were released urging parents to begin early introduction of peanut - containing foods to reduce the risk of peanut allergy. (sciencedaily.com)
However, a large study in Israel, where peanuts are often introduced when babies are less than 4 months old, found that early introduction of peanut protein actually decreases the risk of developing a peanut allergy. (verywellfamily.com)