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Tree nut allergies, including almonds, are among the top eight food allergens in the U.S.

Tree Nut Allergy

Includes walnuts, macadamia nuts, pecans, pistachios, chestnuts, almonds, hazelnuts, Brazil nuts, coconuts, and pine nut allergens


What is a Tree Nut Allergy?

Tree nut allergies are among the most common eight allergies in the United States and are often quite severe. Tree nuts include almonds, Brazil nuts, cashews, chestnuts, hazelnuts, macadamia nuts, pecans, pine nuts, pistachios, and walnuts. Cashews are technically considered a seed, but are commonly grouped into the tree nut category due to the threat of allergic reaction.

If diagnosed with a soybean allergy, it is very possible that people can continue to eat other tree nuts. However, if they do continue to eat other tree nuts the chance of cross-reactivity is very high, and the individual will likely also become allergic to that nut. Typically tree nut allergies develop in childhood, and only 9% of people diagnosed with tree nut allergies outgrow them.

The symptoms of tree nut allergies are similar to most other allergic reactions. Mild symptoms include rash, hives, welts, and a sensation of the throat feeling like cotton. However, a large proportion of those who have tree nut allergens react with anaphylaxis. Some argue that peanut allergen anaphylaxis is more prevalent, but this is skewed by the fact that peanut allergens are more prevalent. In fact, tree nut allergens more often to lead to anaphylaxis than peanut allergens. This makes them particularly dangerous, and it is important for those diagnosed with peanut allergens to always carry an epinephrine pen. These reactions are typically more severe with raw nuts, but even very small amounts of oils can cause reactions.

The only effective form of treatment for tree nut allergens is to strictly avoid foods containing such nuts, cooking revolving around tree nuts, as well as avoiding the tree nuts themselves. Such a task is easier with tree nuts than with some other allergens because tree nuts are not as prevalent in the American diet. Foods that nearly always contain tree nuts include pesto, marzipan, Nutella,...


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