In the developed world about 4% to 8% of people have at least one food allergy.[1][2] They are more common in children than adults and appear to be increasing in frequency. Male children appear to be more commonly affected than females.[2] Some allergies more commonly develop early in life while others typically develop in later life.[1] In developed countries, a large proportion of people believe they have food allergies when they actually do not have them.[5][6][7]