How many kids is "a lot?" What percentage? Studies? Statistics?
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http://www.niaid.nih.gov/factsheets/allergystat.htm
Experts estimate food allergy occurs in 6 to 8 percent of children 4 years of age or under, and in 4 percent of adults. [15, 20] Approximately 150 Americans, usually adolescents and young adults, die annually from food-induced anaphylaxis. [16]
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http://www.marchofdimes.com/professionals/681_1819.asp
Peanut or tree nut allergies affect approximately 0.6 percent and 0.4 percent of Americans, respectively, and cause the most severe food-induced allergic reactions. [17]
The prevalence of allergy to peanut products is approximately 1% of the U.S. population, and one out of four allergic individuals has severe allergy, with severe respiratory or gastro-intestinal symptoms.
http://preventdisease.com/news/articles/peanut_allergies_more_common.shtml
Nut and peanut allergies may be getting more common in children, doubling over the past five years in the United States, researchers reported.
Peanut allergies affect an estimated 1.5 million Americans and 200 people die every year from severe allergic reactions, called anaphylactic reactions, to peanuts.
http://www.allergyhealthonline.com/common/articles.cfm?ARTID=213
Roughly 1.5 million people suffer from a severe allergy to peanuts in the United States, according the AAAAI.
http://www.allergyhealthonline.com/common/articles.cfm?ARTID=171
True food allergies occur in roughly 1 to 2 percent of adults and 3 to 8 percent of children, according to the Asthma and Allergy Foundation of America. About 90 percent of all food allergies have been traced to the following foods:
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Cows milk
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Eggs
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Peanuts
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Tree nuts (e.g., almonds, walnuts)
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Wheat
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Soybeans
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Fish
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Shellfish
http://www.beaumonthospitals.com/pls/portal30/cportal30.webpage?l_recent=P00037
Eight percent of children 6 years old or younger experience food allergies. An estimated 1 percent to 2 percent of adults have food allergies.