Vomiting in Infancy: Is It FPIES?

Elizabeth Feuille, MD; Anna H. Nowak-Wegrzyn, MD, PhD

Disclosures

January 02, 2019

Which Foods Cause FPIES?

Chronic FPIES is almost always triggered by ingestion of cow's milk or soy protein, whereas acute FPIES may be triggered by a variety of foods. Cow's milk, soy, rice, oats, and eggs are the most common culprits. Other foods associated with acute FPIES include various fruits, vegetables, legumes, nuts, poultry, beef, and seafood.[3,4,7,8,10]

While a majority (65%-73%) of infants with FPIES react to just one food, one quarter may react to two or more foods and 10% to three or more foods. Cow's milk and soy protein as triggers for FPIES frequently occur together (in 20%-40% of infants), as do rice and oats (in 30%).[3,4]

Diagnosing FPIES in Your Patients

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