Purpose of review The purpose of this review is to summarize recent studies and emerging consensus guidelines regarding food allergy prevention in infants of the past 5 years. Recent findings Prior to 2013, the general consensus regarding prevention of food allergy in infants was to recommend delayed introduction or complete avoidance of commonly allergenic foods, such as milk, egg and peanut. However, in the past 5 years, several landmark studies have been conducted, particularly with peanut. The results of these studies have led to a paradigm shift from recommending delayed introduction to early introduction and frequent feeding of highly allergenic foods such as peanut, with hopes of achieving primary and secondary prevention of food allergy in infants. Summary Recent clinical trials have demonstrated that early introduction and frequent feeding, rather than delayed introduction or complete avoidance, of commonly allergenic foods plays a critical role in preventing food allergy in infants. More studies are required to risk-stratify infants by personal and family atopic history to tailor guidelines for groups with inherently different risks. The universal acceptance of the guidelines and their application outcome are still to be determined. Correspondence to Amal Assa'ad, MD, Professor of Pediatrics, Division of Allergy and Immunology, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave, Mail Location 2000, Cincinnati, OH 45229, USA. Tel: +1 513 636 6771; fax: +1 513 636 5835; e-mail: amal.assaad@cchmc.org Copyright © 2018 Wolters Kluwer Health, Inc. All rights reserved.
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