Unprepared Cauliflower Nutrition Facts

FoodData Central Updated 6 April 2026

One piece of unprepared cauliflower contains 15.8 calories, 1.3g protein, 3.1g carbs, and 0.2g fat. Unprepared Cauliflower is a vegetable that is very low in calories. It is an excellent source of vitamin C.

15.8

cal

3.1g

carbs

1.3g

protein

amino acids ↓

0.2g

fat

1.5g

fiber

1.5g

sugar

Vitamins in Unprepared Cauliflower

Per 0.5 cup (1" pieces) ~66g

Vitamin A
0.66mcg
<1%
Vitamin C
32.2mg
36%
Vitamin E
0.05mg
<1%
Vitamin K
9.77mcg
8%
Vitamin B6
0.08mg
5%
Thiamin (B1)
0.03mg
3%
Niacin (B3)
0.28mg
2%
Folate
42.2mcg
11%

Minerals in Unprepared Cauliflower

Per 0.5 cup (1" pieces) ~66g

Calcium
14.5mg
1%
Iron
0.36mg
2%
Magnesium
7.92mg
2%
Phosphorus
23.1mg
2%
Potassium
127mg
3%
Sodium
15.8mg
<1%
Zinc
0.11mg
1%
Selenium
0.53mcg
<1%
Copper
0.02mg
2%
Manganese
0.13mg
6%

Amino Acids in Unprepared Cauliflower

Protein breakdown per 0.5 cup (1" pieces) (66g), from the USDA record for this food.

Incomplete protein

Limiting amino acid: Leucine — 100% of the FAO/WHO adult reference pattern per gram of protein.

Essential Amino Acids Per 0.5 cup (1" pieces) (66g) Per 100g % of Protein
Histidine 27mg 41mg 2%
Isoleucine 51mg 77mg 3.8%
Leucine 78mg 118mg 5.9%
Lysine 71mg 108mg 5.4%
Methionine 18mg 28mg 1.4%
Phenylalanine 48mg 72mg 3.6%
Threonine 48mg 73mg 3.6%
Tryptophan 17mg 26mg 1.3%
Valine 67mg 101mg 5%
Other Amino Acids Per 0.5 cup (1" pieces) (66g) Per 100g % of Protein
Alanine 70mg 106mg 5.3%
Arginine 64mg 97mg 4.8%
Aspartic Acid 156mg 236mg 11.7%
Cystine 15mg 23mg 1.1%
Glutamic Acid 177mg 268mg 13.3%
Glycine 43mg 65mg 3.2%
Proline 57mg 87mg 4.3%
Serine 69mg 105mg 5.2%
Tyrosine 29mg 44mg 2.2%

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 Unprepared Cauliflower

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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

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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.