Walnut
Also listed as Walnuts, English Walnuts, and Tree Nuts - Walnut.
Nuts & Legumes
This is what the ingredient is.
Walnuts are tree nuts sold shelled or in-shell. Labels may say walnuts or English walnuts.
Here is why it shows up on the label.
They are eaten as snacks and used in baking, salads, and pestos.
Here is what food agencies say.
Walnut is a tree nut major allergen under US labeling law and must be declared.
Here is what research has found.
Allergen mislabeling and pathogen contamination have appeared in walnut product recalls.
Here are a few things worth knowing.
Tree nut allergy can be severe. Store cool to limit rancidity.
Sources
- FDA Food Labeling
- USDA FSIS
- FDA Recalls
How to read this page
We publish plain facts about this ingredient so a label is easier to read. This is not medical advice, and it is not a recommendation to buy, avoid, or use anything. For a personal health question, talk with a clinician who knows your history.
v1.0Updated 9/16/2026