The leading respiratory research center in the world has this to say about
food allergies and asthma:

From National Jewish Medical and Research Center:

"Many people unnecessarily avoid certain foods because of mistaken fears
about food allergies. Parents are especially prone to limiting the diets of
their children. In one study, 28 percent of parents thought their children
had at least one food allergy during the first three years of life. However,
careful testing showed that only 8 percent of the children actually had a
food allergy."

Full text of article is here:

http://www.nationaljewish.org/news/health-news/features/food-allergy-mispercepti
ons.aspx