A tree nut allergy is a hypersensitivity to dietary substances from tree nuts and edible tree seeds, causing an overreaction of the immune system, which may lead to severe physical symptoms. Tree nuts include almonds, Brazil nuts, cashews, chestnuts, filberts/hazelnuts, macadamia nuts, pecans, pistachios, shea nuts, and walnuts.
A tree nut allergy is a hypersensitivity to dietary substances from tree nuts and edible tree seeds, causing an overreaction of the immune system, which may lead to severe physical symptoms. Tree nuts include almonds, Brazil nuts, cashews, chestnuts, filberts/hazelnuts, macadamia nuts, pecans, pistachios, shea nuts, and walnuts.
Source: Wikipedia "Tree nut allergy" · CC BY-SA 4.0
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