Tree Nuts

FDA major food allergen7 related articles
Common or usual nameScientific name
AlmondPrunus dulcis
Black walnutJuglans nigra
Brazil nutBertholletia excelsa
California walnutJuglans californica, Juglans hindsii
CashewAnacardium occidentale
Filbert / hazelnutCorylus spp.
Heartnut / Japanese walnutJuglans ailantifolia
Macadamia nut / bush nutMacadamia spp.
PecanCarya illinoinensis
Pine nut / piñon nutPinus spp.
PistachioPistacia vera
Walnut (English, Persian)Juglans regia
The 12 tree nuts in FDA Food Allergen Labeling Guidance, Edition 5 (January 2025). Each must be named specifically on labels, for example "Contains: Almond".

Removed from the FDA list in January 2025: beech nut, butternut, chestnut, chinquapin, coconut, ginkgo, hickory nut, lychee nut, palm nut, pili nut, shea nut and kola nut. Removed nuts must still appear by name in the ingredient list, but not in the "Contains" statement. Butternut is a walnut relative and hickory a pecan relative, so people allergic to walnut or pecan should treat them with caution.

These nuts must be clearly labeled on packaged food products if they are present as ingredients.

Changes to Note

  • Coconut is botanically classified as a drupe (fruit) rather than a true nut, but botany was not the reason for the change: the FDA removed it from the tree nut allergen category for labeling purposes based on evidence about how often it causes allergic reactions. This change was part of the FDA's updated guidance issued on January 6, 2025, which reduced the list of tree nuts requiring allergen labeling from 23 to 12.
  • This is a labeling change, not a safety finding. Coconut, chestnut, shea and the other removed nuts can still cause allergic reactions. They must still be listed by name in the ingredient list, but they no longer appear in the "Contains" statement — if you are allergic to one, read the full ingredient list.
  • Chestnut is no longer classified as a major food allergen, but it must still be declared by its common or usual name in the ingredient list on food labels. However, it should not be included in the "Contains" statement reserved for major food allergens.
  • Shea nuts are sometimes questioned as an allergen, but the FDA does not classify shea nuts as a major allergen.

Sources

Key sources used to check the facts on this page (reviewed November 2026). They are not endorsements of this site.

  1. WHO/IUIS Allergen Nomenclature Sub-Committee. Allergen Nomenclature database. allergen.org (accessed November 2026).
  2. Dramburg S, et al. EAACI Molecular Allergology User’s Guide 2.0. Pediatr Allergy Immunol. 2023. doi:10.1111/pai.13854
  3. Boyce JA, et al. Guidelines for the diagnosis and management of food allergy in the United States: report of the NIAID-sponsored expert panel. J Allergy Clin Immunol. 2010. doi:10.1016/j.jaci.2010.10.007
  4. Golden DBK, et al. Anaphylaxis: a 2023 practice parameter update. Ann Allergy Asthma Immunol. 2024. doi:10.1016/j.anai.2023.09.015
  5. U.S. Food and Drug Administration. Questions and Answers Regarding Food Allergens, Including the Food Allergen Labeling Requirements of the FD&C Act (Edition 5). Guidance for industry, January 2025. fda.gov
  6. U.S. Food and Drug Administration. FDA Issues Guidances on Food Allergen Labeling Requirements. January 2025. fda.gov
  7. FARE (Food Allergy Research & Education). Update: FDA Guidance on Food Allergen Labeling. 2025. foodallergy.org

Nut-by-nut profiles

Botanical, allergenic and nutritional detail for each tree nut on the FDA list.

Articles about tree nuts