How many calories are in Nuts, Walnuts?

A 100 g serving of Nuts, Walnuts has 643 kcal. The calories in your portion depend on its weight and how it is prepared.

How much protein is in Nuts, Walnuts?

Per 100 g there are 14.3 g of protein — about 29% of the Daily Value (50 g).

How much fat and carbs are in Nuts, Walnuts?

Per 100 g there are 60.7 g of fat and 17.9 g of carbohydrate, including 7.1 g of fiber.

What nutrients is Nuts, Walnuts high in?

Per 100 g it notably contributes to your Daily Value for: Magnesium (36% DV), Protein (29% DV), Dietary Fiber (25% DV).

Nuts & Seeds

Nuts, Walnuts

USDA reference values for nuts, walnuts (per 100 g).

643kcalCalories

14.3gProtein

60.7gFat

17.9gCarbs

Protein, fat and carb balance

Share of calories from each macronutrient (per 100 g).

Protein 8.7%
Fat 82.7%
Carbs 8.7%

What this food is high in

36% Magnesium 151 mg / 100 g 29% Protein 14.3 g / 100 g 25% Dietary Fiber 7.1 g / 100 g 14% Iron 2.6 mg / 100 g

Shown as percent of the Daily Value per 100 g.

Full nutrition facts (per 100 g)

Nutrient	Per 100 g	% DV*
Macronutrients
Protein	14.3 g	29%
Total Fat	60.7 g	78%
Saturated Fat	5.4 g	27%
Carbohydrate	17.9 g	6%
Dietary Fiber	7.1 g	25%
Total Sugars	3.6 g	7%
Minerals
Sodium	643 mg	28%
Potassium	459 mg	10%
Calcium	71 mg	5%
Iron	2.6 mg	14%
Magnesium	151 mg	36%
Vitamins
Vitamin C	1.4 mg	2%
Vitamin A	1 mcg	<1%
Vitamin D	0 mcg	0%
Other
Cholesterol	0 mg	0%

* Percent of the Daily Value (Daily Value, based on a 2,000 kcal diet).

Data source: USDA FoodData Central. Values are per 100 g of edible portion and are reference figures — they vary by variety, preparation and brand. Last updated: 2026-04-30.

Frequently asked questions

How many calories are in Nuts, Walnuts?: A 100 g serving of Nuts, Walnuts has 643 kcal. The calories in your portion depend on its weight and how it is prepared.
How much protein is in Nuts, Walnuts?: Per 100 g there are 14.3 g of protein — about 29% of the Daily Value (50 g).
How much fat and carbs are in Nuts, Walnuts?: Per 100 g there are 60.7 g of fat and 17.9 g of carbohydrate, including 7.1 g of fiber.
What nutrients is Nuts, Walnuts high in?: Per 100 g it notably contributes to your Daily Value for: Magnesium (36% DV), Protein (29% DV), Dietary Fiber (25% DV).

Similar foods and comparisons

Almond Butter, Creamy 645 kcal 20.8 g protein Flaxseed, Ground 545 kcal 18 g protein Flour, Almond 622 kcal 26.2 g protein Flour, Chestnut 385 kcal 5.3 g protein Flour, Coconut 438 kcal 16.1 g protein Nuts 19 kcal 0.7 g protein

Compare Nuts, Walnuts with: Almond Butter, Creamy Flaxseed, Ground Flour, Almond Flour, Chestnut

Note. This information is provided for general reference only and is not medical advice or a diet prescription. If you have a medical condition or special dietary needs, consult a physician or a registered dietitian.