Research on peanut & legume allergies? - Peanut Allergy Information

Research on peanut & legume allergies?

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Is there any research out there showing a link between peanut allergy and allergy to other legumes? Or: does anyone know what percentage of people allergic to peanuts are also allergic to other legumes?

By PeanutAllergy.com on Dec 12, 2013

Question of the Week: Answered!

Every week, PeanutAllergy.com is answering one of the questions posted in our community.

Our Answer:

We understand your concern as there is a chance of cross-reactivity with some food allergies. Cross-reactivity means that being allergic to one item in a certain food family may result in an allergy to other items of that family.

As you and others in the peanut allergy community know, peanuts are actually legumes and not nuts. Fortunately, an allergy to peanuts does not increase your chances of having an allergy to other legumes.

Approximately 5 percent of those with a peanut allergy are also allergic to other legumes, according to the UCLA Food and Drug Allergy Care Center. However, siblings seem to share the legume allergy as it tends to run in families.

To be completely positive of which foods you can and cannot eat, we recommend talking to your allergist.

You can read more about legumes here.

We asked our Facebook fans for their input, and you can read their answers here.

By cathlina on Dec 15, 2013

Yes. There are shared proteins between peanuts and other legumes. For example, peas are a very close relative. My RAST test shows a higher allergy to peas than peanuts. I also am allergic to a tree in legume family, black locust. This tree sheds large black bean pods. When it flowers in the spring, I have asthma attacks. The best thing to do would be to have your allergy doctor run Rast tests on all legumes. That is how I found the pea allergy.

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