People with fruit and vegetable allergies generally also have hay fever because some tree and weed pollens share characteristics with certain fruit and vegetable proteins. Such allergies often develop in adulthood. "As older children, teenagers, and adults get more pollen allergies, they end up possibly having more problems with raw fruits and vegetables," says Sicherer. These allergies are usually mild, with symptoms like an itchy mouth or throat, and can be addressed by heating fruits and veggies prior to consumption.
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