Hazelnuts Nutrition Facts

FoodData Central Updated 30 March 2026

1 oz of hazelnuts contains 175.8 calories, 4.2g protein, 4.7g carbs, and 17g fat. Sweet, aromatic nuts popular in chocolate and coffee flavorings.

175.8

cal

4.7g

carbs

4.2g

protein

amino acids ↓

17g

fat

2.7g

fiber

1.2g

sugar

Vitamins in Hazelnuts

Per 1 oz ~28g

Vitamin A
0.28mcg
<1%
Vitamin C
1.76mg
2%
Vitamin E
4.21mg
28%
Vitamin K
3.98mcg
3%
Vitamin B6
0.16mg
9%
Thiamin (B1)
0.18mg
15%
Folate
31.6mcg
8%

Minerals in Hazelnuts

Per 1 oz ~28g

Calcium
31.9mg
2%
Iron
1.32mg
7%
Magnesium
45.6mg
11%
Phosphorus
81.2mg
6%
Potassium
190mg
4%
Zinc
0.69mg
6%
Selenium
0.67mcg
1%
Copper
0.48mg
54%
Manganese
1.73mg
75%

Amino Acids in Hazelnuts

Protein breakdown per 1 oz (28g), from the USDA record for this food.

Incomplete protein

Limiting amino acid: Lysine — 62% of the FAO/WHO adult reference pattern per gram of protein.

Essential Amino Acids Per 1 oz (28g) Per 100g % of Protein
Histidine 121mg 432mg 2.9%
Isoleucine 153mg 545mg 3.6%
Leucine 298mg 1063mg 7.1%
Lysine 118mg 420mg 2.8%
Methionine 62mg 221mg 1.5%
Phenylalanine 186mg 663mg 4.4%
Threonine 139mg 497mg 3.3%
Tryptophan 54mg 193mg 1.3%
Valine 196mg 701mg 4.7%
Other Amino Acids Per 1 oz (28g) Per 100g % of Protein
Alanine 204mg 730mg 4.9%
Arginine 619mg 2211mg 14.8%
Aspartic Acid 470mg 1679mg 11.2%
Cystine 78mg 277mg 1.9%
Glutamic Acid 1039mg 3710mg 24.8%
Glycine 203mg 724mg 4.8%
Proline 157mg 561mg 3.8%
Serine 206mg 735mg 4.9%
Tyrosine 101mg 362mg 2.4%

Protein quality is scored against the FAO/WHO/UNU 2007 adult indispensable amino acid reference pattern. The FDA publishes no Daily Values for individual amino acids, so the share of total protein is shown instead.

Learn More About Hazelnuts

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Verified Nutrition Data

Trusted & Verified Nutritional Information

All nutritional data on Food Index is sourced from official U.S. government databases and verified by nutrition experts at leading federal agencies.

USDA Official Source
FDA Safety Standards
HHS Health Standards
NIH Research Verified

Laboratory Analyzed

Nutrient values from certified lab analysis

Peer Reviewed

Data reviewed by nutrition scientists

Regularly Updated

Synced with latest official database releases

Nutritional values are based on standard reference data and may vary slightly based on preparation methods, brands, and natural variation in foods. Always consult with a healthcare professional for personalized dietary advice.