Feeding the Infant With Possible Food Allergy: What's Best?

Jennifer S. Kim, MD


June 18, 2014

It would be most practical to introduce soy formula to the infant, because that is what her milk-allergic brother drinks and he is still a toddler. That will minimize the risk for accidental ingestion of cow's milk within the home. It would not be unreasonable to have both children on the same diet, especially in early childhood.

There is no evidence to support routine serologic food-specific IgE screening of children who have no history of an allergic reaction or other symptoms or signs of food-related allergic disease. In practice, owing to anxiety, many families with a child with food allergy will desire or request testing in a younger sibling before introduction. Certainly, referral to an allergist would be warranted if there is concern about food allergy on the basis of clinical history, per the NIAID-Sponsored Expert Panel Guidelines for the Diagnosis and Management of Food Allergy in the United States.[13]


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