Hi, I am curious about how widespread food sensitivities are. Please only choose a particular option if you know for sure you have a sensitivity to a particular food. Conformation of sensitivities include: skin prick test, patch test, skin rash after eating, positive result on hydrogen breath test, serious swelling, asthma, diarrhea, vomiting, IgA or IgE serology. Confirmation through an elimination diet is also preferable. Do not choose any options on the basis of IgG serology, or Vega testing.