an abnormal response of the immune system to an otherwise harmless food

a reaction by your child's immune system to the proteins found in wheat

Wheat allergy is a type of food allergy. It is a hypersensitivity to dietary substances from wheat, causing an overreaction of the immune system which may lead to severe physical symptoms for millions of people in the United States. National Institutes of Health, NIAID Allergy Statistics 2005 http://www.niaid.nih.gov/factsheets/allergystat.htm.