Nuts & seeds

Nuts, walnuts, black, dried

FDC 170186cup, chopped (125 g)

Source: USDA FoodData Central · Public domain

Original analysis by NutriVerdict

Density 54 · -11 vs Nuts & seeds median

Black walnuts, dried, carry a Nutrient Density Score of 54 of 100, a Fair rating ranked 41st of 60 in the Nuts & seeds category. Fat dominates the calorie count at 619 per 100 grams, but the nut delivers an excellent 48% DV each of protein and magnesium, plus 24% DV of dietary fiber and 17% DV of iron.

Black walnuts have a stronger, more assertive flavor than the common English walnut and are usually chopped into baked goods, fudge, or ice cream rather than eaten by the handful. A cup, chopped, is the typical measure used in recipes, and sodium is negligible at just 2 mg per 100 g. The score sits below the category's median of 65, so butternuts, dried, or pistachio nuts, raw, are worth a look for anyone chasing a higher density figure among nuts.

See how this score is calculated, build a plate around nuts, walnuts, or compare it with another food.

Source: USDA FoodData Central · Public domain

Fig. 1 · Macronutrient composition
Protein 24.1 g · 14%Carb 9.6 g · 6%Fat 59.3 g · 80%

Percent of calories derived by NutriVerdict from USDA grams

Nutrition facts

NutrientAmount% DV
Calories619 kcal31%
Total fat59 g76%
Saturated fat3.5 g17%
Cholesterol0 mg0%
Sodium2 mg0%
Carbohydrate9.6 g3%
Dietary fiber6.8 g24%
Sugars1.1 g
Protein24 g48%
Potassium523 mg11%
Calcium61 mg5%
Iron3.1 mg17%
Magnesium201 mg48%
Vitamin C1.7 mg2%
Vitamin A2 µg0%
Vitamin E2.1 mg14%

Source: USDA FoodData Central · Public domain

FDC 170186

Original analysis by NutriVerdict

What it is rich in

Nutrients supplying at least 10% of the Daily Value per 100 grams. 20% or more is an excellent source.

Protein48% DV
Magnesium48% DV
Dietary fiber24% DV
Iron17% DV
Vitamin E14% DV
Potassium11% DV

Original analysis by NutriVerdict

Versus the nuts & seeds median

Nutrient density54 vs 65 median
Protein / 100 g24 vs 15 median
Fiber / 100 g6.8 vs 6 median
Sodium / 100 g2 vs 12 median

Original analysis by NutriVerdict

More nutrient-dense swaps

Foods in the same category that score higher on nutrient density.

Nuts, butternuts, driedDensity 55 vs 54Nuts, pistachio nuts, rawDensity 55 vs 54Nuts, pine nuts, driedDensity 56 vs 54

Original analysis by NutriVerdict

In the kitchen and how to use it

Black walnuts have a bolder, more assertive flavor than the common English walnut, often described as earthy or slightly bitter, which is why they show up most often in baked goods like fudge, cookies and cakes where their taste can stand up to sugar and chocolate. They are also chopped over salads, stirred into homemade ice cream, or eaten out of hand as a snack, though their thick, hard shells mean most home cooks buy them already shelled. Because their flavor is stronger than milder nuts, a little goes further in recipes, and they are often used in smaller quantities than pecans or English walnuts in the same dish.

Shelled black walnuts should be stored in an airtight container in the refrigerator or freezer, since their high fat content makes them prone to turning rancid at room temperature faster than many other nuts. A cup of chopped black walnuts runs 619 calories, reflecting their fat density, but per 100 grams they supply 48% of the Daily Value for both protein and magnesium along with 24% for fiber, so a small handful adds meaningful nutrition to a snack, salad topping or baked good rather than just filling out calories.

Frequently asked questions about nuts, walnuts

How many calories are in black walnuts?

A cup of chopped black walnuts has 619 calories, which reflects their naturally high fat content.

Is black walnut a good source of magnesium?

Yes, black walnuts provide 48% of the Daily Value for magnesium per 100 grams, matching their protein content at the same level.

How are black walnuts typically used?

They are most often used in baked goods like cookies, cakes and fudge, where their bold, earthy flavor pairs well with sugar and chocolate.

View the USDA source record