Butternut Squash Nutrition Facts

FoodData Central Updated 30 March 2026

Butternut Squash contains 63 calories, 1.4g protein, 16.4g carbs, and 0.1g fat. A sweet, nutty winter squash with dense orange flesh, perfect for soups and roasting.

63

cal

16.4g

carbs

1.4g

protein

amino acids ↓

0.1g

fat

2.8g

fiber

3.1g

sugar

Vitamins in Butternut Squash

Per 1 cup cubed ~140g

Vitamin A
745mcg
83%
Vitamin C
29.4mg
33%
Vitamin E
2.02mg
13%
Vitamin K
1.54mcg
1%
Vitamin B6
0.22mg
13%
Thiamin (B1)
0.14mg
12%
Niacin (B3)
1.68mg
11%
Folate
37.8mcg
9%

Minerals in Butternut Squash

Per 1 cup cubed ~140g

Calcium
67.2mg
5%
Iron
0.98mg
5%
Magnesium
47.6mg
11%
Phosphorus
46.2mg
4%
Potassium
493mg
10%
Sodium
5.6mg
<1%
Zinc
0.21mg
2%
Selenium
0.7mcg
1%
Copper
0.1mg
11%
Manganese
0.28mg
12%

Amino Acids in Butternut Squash

Protein breakdown per 1 cup cubed (140g), from the USDA record for this food.

Essential Amino Acids Per 1 cup cubed (140g) Per 100g % of Protein
Histidine 27mg 19mg 1.9%
Isoleucine 55mg 39mg 3.9%
Leucine 80mg 57mg 5.7%
Lysine 52mg 37mg 3.7%
Methionine 17mg 12mg 1.2%
Phenylalanine 55mg 39mg 3.9%
Threonine 42mg 30mg 3%
Tryptophan 20mg 14mg 1.4%
Valine 60mg 43mg 4.3%
Other Amino Acids Per 1 cup cubed (140g) Per 100g % of Protein
Alanine 59mg 42mg 4.2%
Arginine 78mg 56mg 5.6%
Aspartic Acid 150mg 107mg 10.7%
Cystine 13mg 9mg 0.9%
Glutamic Acid 245mg 175mg 17.5%
Glycine 52mg 37mg 3.7%
Proline 50mg 36mg 3.6%
Serine 55mg 39mg 3.9%
Tyrosine 48mg 34mg 3.4%

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 Butternut Squash

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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.