How many calories are in Nuts, Walnuts?

A 100 g serving of Nuts, Walnuts has 730 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 14.6 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 69.7 g of fat and 10.9 g of carbohydrate, including 5.2 g of fiber.

What nutrients is Nuts, Walnuts high in?

Per 100 g it notably contributes to your Daily Value for: Magnesium (34% DV), Protein (29% DV), Dietary Fiber (19% DV).

Nuts & Seeds

Nuts, Walnuts

Nuts, Walnuts belongs to the nuts & seeds category of our catalog. A 100 g serving provides 730 kcal with 14.6 g of protein, 69.7 g of fat, 10.9 g of carbohydrate. Its strongest contribution is magnesium — 34% of the Daily Value per 100 g (see the magnesium rich foods: the best everyday sources guide). Related entries in the same group include Nuts, Walnuts and Seeds, Breadfruit Seeds, or jump to the full food catalog.

730kcalCalories

14.6gProtein

69.7gFat

10.9gCarbs

Calorie & macro balance

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

730 kcal / 100 g

Protein8.1%14.6 g
Fat87.3%69.7 g
Carbs4.6%10.9 g

What this food is high in

Magnesium 142.4 mg / 100 g Protein 14.6 g / 100 g Dietary Fiber 5.2 g / 100 g Iron 2.2 mg / 100 g

Shown as percent of the Daily Value per 100 g. Tap a ring to explore that nutrient across all foods.

Full nutrition facts (per 100 g)

Nutrient	Per 100 g	% DV*
Energy
Calories	729.6 kcal	36%
Macronutrients
Protein	14.6 g	29%
Total Fat	69.7 g	89%
Saturated Fat	6.1 g	30%
Carbohydrate	10.9 g	4%
Dietary Fiber	5.2 g	19%
Total Sugars	—
Minerals
Sodium	0 mg	0%
Potassium	423.5 mg	9%
Calcium	88.3 mg	7%
Iron	2.2 mg	12%
Magnesium	142.4 mg	34%
Vitamins
Vitamin C	—
Vitamin A	—
Vitamin D	—
Other
Cholesterol	—

* Percent of the 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 730 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 14.6 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 69.7 g of fat and 10.9 g of carbohydrate, including 5.2 g of fiber.
What nutrients is Nuts, Walnuts high in?: Per 100 g it notably contributes to your Daily Value for: Magnesium (34% DV), Protein (29% DV), Dietary Fiber (19% 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

Nuts, Walnuts vs Almond Butter, Creamy Nuts, Walnuts vs Flaxseed, Ground Nuts, Walnuts vs Flour, Almond Nuts, Walnuts vs Flour, Chestnut

Keep exploring

All nuts & seeds Nuts & Seeds highest in magnesium All foods highest in magnesium Magnesium Rich Foods: The Best Everyday Sources guide Compare foods

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.