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Hazelnuts nutrition facts

One oz (21 whole kernels) (28 g) of hazelnuts has 178 calories, with 4.3 g protein, 4.7 g carbohydrate, 17.3 g fat, and is a notable source of manganese and copper.

Key nutrition

Nutrition in 1 oz (21 whole kernels) of hazelnuts and per 100 g
Nutrient1 oz (21 whole kernels) (28 g)Per 100 g% Daily Value
Calories178 kcal628 kcal—
Protein4.3 g15 g9%
Carbohydrate4.7 g17 g2%
Fibre2.8 g9.7 g10%
Sugars1.2 g4.3 g—
Fat17 g61 g22%
Saturated fat1.3 g4.5 g6%
Sodium0 mg0 mg0%
Potassium193 mg680 mg4%
Calcium32 mg114 mg2%
Iron1.3 mg4.7 mg7%
Vitamin C1.8 mg6.3 mg2%

Values are from the USDA FoodData Central database. The tool above shows every vitamin, mineral, fat and amino acid, and any portion you like.

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Frequently asked questions

How many calories are in hazelnuts?
One oz (21 whole kernels) (28 g) of hazelnuts has about 178 calories. Per 100 g that is 628 calories. The figures are from the USDA FoodData Central database (lab-measured values).
How much protein is in hazelnuts?
One oz (21 whole kernels) (28 g) has 4.3 g of protein (15 g per 100 g). That makes it a good source of protein.
How many carbs are in hazelnuts?
One oz (21 whole kernels) (28 g) has 4.7 g of carbohydrate, of which 2.8 g is fibre and 1.2 g is sugars.
What vitamins and minerals does hazelnuts contain?
Per oz (21 whole kernels) (28 g), the most notable are manganese (76% of the Daily Value), copper (54% of the Daily Value), vitamin e (28% of the Daily Value), thiamin (b1) (15% of the Daily Value). The tool above lists every vitamin and mineral the USDA measured, at any portion size.
Where do these hazelnuts nutrition numbers come from?
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.

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