Allergy Expert Heather Reese shares Allergy management news and commentary at MyAllergyNetwork.com. The HealthCentral Network, Inc. (www.HealthCentral.com) is one of the top health destinations on the Web, with more than 35 condition-specific, wellness and general health Web properties. http://www.healthcentral.com/allergy/c/7570 http://www.healthcentral.com/allergy/c/7570/rss self application/xml en-us 15 120 19 http://www.healthcentral.com/images/hc_logo_sm.gif http://www.healthcentral.com/allergy/c/7570 http://www.healthcentral.com/allergy/c/7570/3550/food-case-identity Fri, 09 Feb 2007 15:51:01 -0500 Heather Reese Nutrition expert Heather Reese breaks down the basics of common food allergies.  A food allergy occurs when the body mistakes a food item for a harmful substance, and the immune system creates antibodies to protect itself. Once this mistaken identity occurs, every time a person eats that food the body will release histamine and other chemicals, triggering an allergic reaction. This response can affect the respiratory, gastrointestinal... http://www.healthcentral.com/allergy/c/7570/3550/food-case-identity