Food allergies are the fifth leading chronic illness in the US – and their incidence is on the rise.1 From 1997 to 2007, food allergies increased 18 percent among children under 18 years,2 and today an estimated one out of every 13 children has a food allergy.3

It’s known that food allergies tend to run in families, which suggests a genetic component. However, other theories for why food allergies are becoming commonplace point to a more complex environmental, as well as lifestyle-related, cause.

via Food Allergies: The Fifth Leading Chronic Illness in US.