Though they are technically seeds,cashewsare commonly classified as tree nuts.

They can be found within the drupe (fleshy fruit) on the tropical tree species known asAnacardium occidentale.

Cashew allergies result when a personsimmune systemreacts to the proteins found in cashews, causingallergy symptoms.

Cashews in a bowl on a table

Westend61 / Getty Images

A cashew allergy is a commontree nut allergy.

Roughly 20% of all people allergic to tree nuts in the United States are allergic to cashews.

This article discusses the symptoms, risk factors, and treatments for cashew allergy.

When serious symptoms arise,anaphylaxis(a life-threatening allergic reaction) may occur.

Typically, diagnosis begins with gathering symptoms or a medical history of allergic reactions after consuming cashews.

Othertestsfor cashew allergy include:

How Common Are Severe Allergic Reactions With Cashew Allergies?

Cashew allergies are often associated with more severe reactions than other types of food allergies.

Treatment

The first-line option for treating a cashew allergy is complete avoidance.

This means that cashews and potentially any other foods with cross-reactivity need to be avoided completely to prevent symptoms.

Antihistaminescan be taken for mild symptoms as soon as a potential allergic reaction has occurred.

However, treatment for severe allergic reactions should be carried at all times in case of an emergency.

This is especially true for pistachios, since they have a high cross-reactivity with cashews.

Many food products contain hidden ingredients that could include cashews.

Be wary of prepackaged foods that dont have a “nut-free” label attached.

You should also keep away from products that have a nut allergy warning label on them.

These often include things like cookies, cakes, ice cream, and sauces.

These can include seeds, soybeans, chickpeas, and pretzels.

This makes them a great alternative to cashews.

They will be able to launch the appropriate tests to determine if cashews are the cause of your symptoms.

You could be having a severe allergic reaction and require immediate medical attention.

Summary

Cashews, though technically a seed, fall under the category of tree nuts.

This causes symptoms such as confusion, dizziness, or difficulty breathing.

You should read all your food labels prior to eating and seek out alternatives.

A Word From Verywell

Having a cashew allergy is unfortunate because many people enjoy eating cashews.

Seek the guidance of a healthcare provider if you experience allergy symptoms after eating cashews.

Frequently Asked Questions

Cashew allergies are fairly common among people with tree nut allergies.

Studies show that as many as 20% of people with a tree nut allergy are allergic to cashews.

When you come into contact with the nut again, symptoms are more likely to occur.

As with all other food allergies, there is no cure.

Food allergies must be treated using avoidance or medications after symptom development.