Question 1

How many calories are in walnuts?

Accepted Answer

One oz (14 halves) (28 g) of walnuts has about 186 calories. Per 100 g that is 654 calories. The figures are from the USDA FoodData Central database (lab-measured values).

Question 2

How much protein is in walnuts?

Accepted Answer

One oz (14 halves) (28 g) has 4.3 g of protein (15.2 g per 100 g). That makes it a good source of protein.

Question 3

How many carbs are in walnuts?

Accepted Answer

One oz (14 halves) (28 g) has 3.9 g of carbohydrate, of which 1.9 g is fibre and 0.7 g is sugars.

Question 4

What vitamins and minerals does walnuts contain?

Accepted Answer

Per oz (14 halves) (28 g), the most notable are copper (50% of the Daily Value), manganese (42% of the Daily Value), magnesium (11% of the Daily Value). The tool above lists every vitamin and mineral the USDA measured, at any portion size.

Question 5

Where do these walnuts nutrition numbers come from?

Accepted Answer

They come from the USDA FoodData Central database (SR Legacy), which is public domain, scaled to the portion shown. Brands and recipes vary, so treat them as typical values. Nothing you look up here is sent to a server.

Nutrient	1 oz (14 halves) (28 g)	Per 100 g	% Daily Value
Calories	186 kcal	654 kcal	—
Protein	4.3 g	15 g	9%
Carbohydrate	3.9 g	14 g	1%
Fibre	1.9 g	6.7 g	7%
Sugars	0.74 g	2.6 g	—
Fat	19 g	65 g	24%
Saturated fat	1.7 g	6.1 g	9%
Sodium	0.57 mg	2 mg	0%
Potassium	125 mg	441 mg	3%
Calcium	28 mg	98 mg	2%
Iron	0.83 mg	2.9 mg	5%
Vitamin C	0.37 mg	1.3 mg	0%

Walnuts nutrition facts

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