Emerging concepts in introducing foods for food allergy prevention.

Purpose of review: This review focuses on the latest information regarding the role of complementary feeding practices and food allergen introduction in the prevention of food allergies.

Recent findings: Early introduction of food allergens for food allergy prevention is recommended by food allergy prevention guidelines and is supported by the latest randomized controlled trials. Diet diversity is recommended, supported by the latest studies from Asia. A European study indicated that diet diversity after the first year of life may still be important for food allergy prevention. The latest systematic reviews indicate there may be an association between ultra-processed food intake and food allergy development. Plant based foods and fiber play an important role in modulating the gut microbiome which has been associated with reduced food allergy outcomes. However, increased intake of food allergens within a diverse diet raises questions about excessive calorie and protein intake but can be managed by focusing on infant satiety cues.

Summary: The latest studies clearly indicate and further supports that introduction of food allergies should not be delayed once complementary feeding is commenced. A diverse diet is recommended to further support the prevention of food allergies.