Cauliflower: what it contains and why it matters
Cauliflower is a white cruciferous vegetable (gobi). This page lists its nutritional content from published sources and explains which lab parameters it relates to.
Last reviewed: 2026-09-04
Nutritional content of cauliflower
Per 100 g edible portion, from published composition data.
| Nutrient | Per 100 g | Source |
|---|---|---|
| Energy | 25 kcal | USDA |
| Protein | 1.92 g | USDA |
| Total lipid (fat) | 0.28 g | USDA |
| Carbohydrate | 4.97 g | USDA |
| Dietary Fiber | 2 g | USDA |
| Vitamin C | 48.2 mg | USDA |
| Folate | 57 µg | USDA |
| Potassium | 299 mg | USDA |
| Calcium | 22 mg | USDA |
| Vitamin K | 15.5 µg | USDA |
Which lab parameters does cauliflower relate to?
Vitamin C
Vitamin C supports the immune system and helps the body absorb non-heme iron from plant foods [WHO].
Folate
Folate is needed to make and repair DNA and to form red blood cells [WHO].
Potassium
Potassium helps nerves and muscles work and helps balance the body's fluids [WHO].
Vegetarian and dietary notes
Cauliflower is a plant-based cruciferous vegetable that is naturally suitable for vegetarian and vegan diets.
Frequently asked questions
How much vitamin C does raw cauliflower contain?
Raw cauliflower provides 48.2 mg of vitamin C per 100 g [USDA]. Vitamin C functions as an antioxidant and is required for collagen biosynthesis and iron absorption.
What is the folate content of raw cauliflower?
Raw cauliflower contains 57 µg of folate per 100 g [USDA]. Folate serves as a coenzyme in nucleic acid synthesis and amino acid metabolism.
How much potassium is present in cauliflower?
There is 299 mg of potassium per 100 g in raw cauliflower [USDA]. Potassium functions as an essential intracellular electrolyte that helps maintain osmotic pressure and cell membrane potential.
What is the dietary fiber content of cauliflower?
Raw cauliflower contains 2.0 g of dietary fiber per 100 g [USDA]. Dietary fiber contributes to intestinal bulk and normal transit time through the gastrointestinal tract.
What sulfur-containing compounds are present in cauliflower?
Cauliflower contains glucosinolates, which are sulfur-rich secondary plant metabolites that are enzymatically converted into isothiocyanates when cell walls are broken by cutting or mastication.
Sources
- USDA — USDA FoodData Central, Agricultural Research Service. https://fdc.nal.usda.gov/
- WHO — World Health Organization — nutrition fact sheets. https://www.who.int/