Walnuts Nuts Nutrition Facts

FoodData Central Updated 6 April 2026

Walnuts Nuts contains 173.3 calories, 6.7g protein, 2.7g carbs, and 16.6g fat. Walnuts Nuts is a protein-rich food that is calorie-dense. It is high in protein, rich in dietary fiber, a good source of iron, and rich in potassium.

173.3

cal

2.7g

carbs

6.7g

protein

amino acids ↓

16.6g

fat

1.9g

fiber

0.3g

sugar

Vitamins in Walnuts Nuts

Per Oz ~28g

Vitamin A
0.56mcg
<1%
Vitamin C
0.48mg
<1%
Vitamin E
0.58mg
4%
Vitamin K
0.76mcg
<1%
Vitamin B6
0.16mg
10%
Thiamin (B1)
0.02mg
1%
Niacin (B3)
0.13mg
<1%
Folate
8.68mcg
2%

Minerals in Walnuts Nuts

Per Oz ~28g

Calcium
17.1mg
1%
Iron
0.87mg
5%
Magnesium
56.3mg
13%
Phosphorus
144mg
11%
Potassium
146mg
3%
Sodium
0.56mg
<1%
Zinc
0.94mg
9%
Selenium
4.76mcg
9%
Copper
0.38mg
42%
Manganese
1.09mg
47%

Amino Acids in Walnuts Nuts

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

Incomplete protein

Limiting amino acid: Lysine — 66% of the FAO/WHO adult reference pattern per gram of protein.

Essential Amino Acids Per oz (28g) Per 100g % of Protein
Histidine 188mg 672mg 2.8%
Isoleucine 270mg 966mg 4%
Leucine 472mg 1684mg 7%
Lysine 200mg 713mg 3%
Methionine 131mg 467mg 1.9%
Phenylalanine 306mg 1094mg 4.5%
Threonine 202mg 721mg 3%
Tryptophan 89mg 318mg 1.3%
Valine 356mg 1271mg 5.3%
Other Amino Acids Per oz (28g) Per 100g % of Protein
Alanine 293mg 1048mg 4.4%
Arginine 1013mg 3618mg 15%
Aspartic Acid 681mg 2433mg 10.1%
Cystine 129mg 462mg 1.9%
Glutamic Acid 1443mg 5152mg 21.4%
Glycine 333mg 1189mg 4.9%
Proline 259mg 926mg 3.8%
Serine 343mg 1225mg 5.1%
Tyrosine 207mg 740mg 3.1%

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 Walnuts Nuts

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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.