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Asparagus, raw

Asparagus is a vegetable eaten for its young stems. These figures describe raw asparagus with the tough bases of the stems removed. It consists mainly of water, with small amounts of protein and carbohydrate. Per 100g, it provides 103 kJ of energy, 2.9g of protein, 175µg of folate and 12mg of vitamin C.

Folate supports normal blood cell formation and is needed for cell division. Vitamin C helps the body absorb iron from plant foods and supports normal skin and connective tissue. Raw asparagus contains little fat or saturated fat, although cooking with butter or oil changes its nutritional content. Full nutrient figures are in the tables below.

Nutrition per 100g

Nutrient

Per 100g

Energy

25 kcal

Energy

103 kJ

Fat

0.6g

of which saturates

0.1g

Carbohydrate

2g

of which sugars

1.9g

Protein

2.9g

Salt

0g

Alcohol

0g

Water

91g

Cholesterol

0mg

Vitamins and minerals per 100g

Nutrient

Per 100g

Vitamin A (retinol equivalent)

53µg

Vitamin D

0µg

Vitamin E

1.2mg

Vitamin C

12mg

Thiamin (B1)

0.16mg

Riboflavin (B2)

0.06mg

Niacin (B3)

1mg

Vitamin B6

0.09mg

Vitamin B12

0µg

Folate

175µg

Calcium

27mg

Iron

0.7mg

Magnesium

13mg

Phosphorus

72mg

Potassium

260mg

Sodium

1mg

Zinc

0.7mg

Copper

0.08mg

Selenium

1µg

Iodine

Trace

Other types of asparagus

Food

Calories per 100g

Protein per 100g

Fat per 100g

Fibre per 100g

Asparagus, grilled

25 kcal

3.5g

0.4g

1.6g

Asparagus, roasted in rapeseed oil

35 kcal

3.5g

1.5g

1.6g

Asparagus, steamed

21 kcal

2.9g

0.4g

1.3g

Asparagus, canned, re-heated, drained

24 kcal

3.4g

0.5g

–

About these figures

Values are per 100g of the food as described (Tough base of stems removed). "Trace" means only a very small amount was found. Nutrients that were not measured are not shown. Salt is calculated from sodium.

Further reading and references

  • Public Health England. McCance and Widdowson's The Composition of Foods Integrated Dataset 2021. GOV.UK.

Article history

The information on this page is written and peer reviewed by qualified clinicians.
  • 3 Nov 2026 | Latest version
  • 3 Nov 2026 | Originally published