Can people with tree nut allergies eat chestnuts?
Quick Answer
Maybe
Chestnuts are technically a type of tree nut, but they have a different protein structure than other tree nuts. Some people with tree nut allergies can eat chestnuts without any problems, while others cannot. It’s important to consult with an allergist before trying chestnuts if you have a tree nut allergy.

What Is It?
Chestnuts are a type of nut that grows on trees, specifically on species of the Castanea genus. They are enclosed in a prickly husk and have a sweet, starchy taste.
Why It Can Be Risky
People with tree nut allergies are at risk of having an allergic reaction to chestnuts.
- mild
- severe
Safe Method?
If you have a tree nut allergy and want to try eating chestnuts, it’s safest to do so under the supervision of an allergist.
Safe Alternatives
If you’re allergic to chestnuts, you can substitute them with other starchy foods like potatoes or sweet potatoes in most recipes.