Peanut allergy is the most common food allergy and the leading cause of anaphylaxis and death due to food allergy. Despite previous guidelines created by the American Academy of Pediatrics in 2003, peanut allergy has continued to significantly increase over the past decade. Therefore, further research has been done to help clinicians provide more evidence-based recommendations about the timing of introduction of peanuts. The LEAP study, published in February 2015, demonstrated the value of much earlier introduction of peanuts to nonallergic patients than previously suggested. These findings have altered current practice, and recommendations supported by the American Academy of Pediatrics now allow the introduction of peanuts as early as age 4 months to reduce the likelihood of developing peanut allergy.