Using this food reference
The walnut record is English walnuts. The ounce portion includes USDA's reference count of halves, but weighing the edible kernels is a more reproducible comparison than assuming every half is equal.
Shell weight does not belong in the edible gram total. Candied walnuts, walnut butter and mixed snack recipes add different processing or ingredients and should not simply inherit this kernel reference.
Match the food before using the numbers
The selected USDA description is Nuts, walnuts, english. Preparation, water loss, added oil, salt, edible skin, product formulation, and measured portion can change the nutrition of the food you actually eat.
Source record
- Source: USDA FoodData Central record 170187
- Data type: SR Legacy
- Source publication date: 2019-04-01
- PlateRover retrieval date: 2026-10-22