Gastrointestinal food allergy, a well-recognized clinical entity, has a wid
e spectrum of clinical features, including cutaneous, respiratory and gastr
ointestinal symptoms and objective abnormalities. The gastrointestinal alte
rations in food allergy have been described throughout the gastrointestinal
tract. Recurrent abdominal pain (RAP) is a common complaint in school-age
children. The findings among children with RAP of an underlying food allerg
y associated with mucosal pathology of the foregut may support a causal rel
ationship between food allergy and RAP. Further studies are needed to eluci
date whether well-documented food allergy (based on double-blind placebo-co
ntrolled food challenges) is a major cause of RAP.