What is FPIES?
FPIES is a severe delayed food allergy of the gut, it is understood to be a T-cell mediated response, a
Non-IgE Food Allergy in which food is considered a foreign invader and the body fights, or attacks it, until it can violently expel it; although the exact mechanisms are still not well understood.
Symptoms include: profound vomiting (often to bile), diarrhea and/or constipation. These symptoms can quickly lead to: lethargy, low body temperature, low blood pressure and in severe cases, sepsis-like shock. And still yet, many parents report children also experiencing many discomforting symptoms while the body fights this reaction and these can include: extreme stomach pains, excessive gas, runny stools with or without mucus/blood, acid reflux, rashes/eczema, sleep disturbance, and agitation/inconsolable crying.
FPIES is a clinical diagnosis (based on symptoms and history) there is currently no test for it.
This is my definition of FPIES, defined by my own research in: medical journal articles, other families living through FPIES I 'meet' on the support groups and, of course, my own son. You can learn more about my research in FPIES here on this blog, and at
The FPIES Foundation website.
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