Protein content
A 1 oz serving of black walnuts contains 6.7 g of protein - a moderate source of protein, about 13% of the 50 g Daily Value.
Share of this food's calories that come from protein - it is more of an energy food than a protein food.
| Serving | 1 oz (28 g) |
|---|---|
| Protein per serving | 6.7 g |
| Protein per 100 g | 24.1 g |
| Calories per serving | 173 kcal |
| Protein density | 16% of calories |
| Share of 50 g Daily Value | 13% |
| Protein quality | Incomplete protein |
| Category | Nuts |
| Food type | Whole food |
| USDA record | FoodData Central #170186 |
A typical 1 oz serving of black walnuts contains 6.7 grams of protein (24.1 g per 100 g), which makes it a moderate source of protein. That covers roughly 13% of the 50 g reference Daily Value, so it adds toward your protein total for the day.
Around 16% of the calories in black walnuts come from protein, so it is more of an energy food than a protein food. It contributes to a day's protein total, but the bulk of what it delivers is energy rather than amino acids - treat it as a contributor alongside a denser source, not as the protein in a meal.
Among the 31 nuts in the database, black walnuts ranks 2nd by protein per serving, and 399th out of all 796 foods on the site. Set against almonds, another nut entry in the database, a serving carries about 0.8 g more protein (almonds has 5.9 g per 1 oz).
It is an incomplete protein on its own; pairing it with other plant foods across the day covers the full range of essential amino acids. The serving above is measured by weight at 28 g. The per-100 g figure lets you compare it directly against any other food here, whatever its serving.
Source: USDA FoodData Central #170186 - "Nuts, walnuts, black, dried" (SR Legacy, published 4/1/2019). Values are the published reference figures for that record, not lab measurements for a specific brand or batch.
Quick answers
Black walnuts has 24.1 g of protein per 100 g. A typical 1 oz serving (28 g) provides 6.7 g.
No. Black walnuts is an incomplete protein on its own; pairing it with other protein sources across the day covers the full range of essential amino acids.
A 1 oz serving of black walnuts contains 6.7 g of protein, about 13% of the 50 g reference Daily Value.
Black walnuts is a moderate source of protein, and about 16% of its calories come from protein, which makes it more of an energy food than a protein food. Set against almonds, another nut entry in the database, a serving carries about 0.8 g more protein (almonds has 5.9 g per 1 oz).
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