What Is Soy Allergy?
Soy allergy is more common in infants and young children than in older children. Most children eventually outgrow their allergy to soy, although some individuals remain allergic to soy throughout their lives.
When a person with a soy allergy is exposed to soy, proteins in the soy bind to IgE antibodies made by the person’s immune system. This triggers the person’s immune defenses, leading to reaction symptoms that can be mild or very severe.
Soybeans are a member of the legume family. Beans, peas, lentils and peanuts are also legumes. Being allergic to soy does not mean you have a greater chance of being allergic to another legume, including peanut.
About 0.4 percent of children are allergic to soy.
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