foodconsumer.org: Food allergies: What you need to know Food allergies: What you need to know ================================================================================ admin on 06/08/2008 23:57:00 In young children, the prevalence of allergy to cow's milk is 1.9-3.2 percent and allergy to egg is 2.6 percent. Allergy to peanuts and tree nuts in the general population is, respectively, 0.6% and 0.4%, with the rate in children of age