A committee from the American Academy of Asthma, Allergy, and Immunology (AAAAI) published new recommendations for parents aimed at helping prevent food allergies in young children.
Primary Prevention of Allergic Disease Through Nutritional Interventions. The Journal of Allergy and Clinical Immunology: In Practice. Volume 1, Issue 1 , Pages 29-36, January 2013
The journal article above, is pretty detailed and isn't a casual quick read. The following might be a better quick introductory article:
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