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Asparagus, roasted in rapeseed oil

Asparagus is a vegetable eaten for its young stems and tips. This entry describes asparagus roasted in rapeseed oil, with the tough bases of the stems removed. It provides protein, fibre and folate, with some fat from the added oil. Per 100g, it contains 3.5g of protein, 1.6g of fibre, 123µg of folate and 1.5g of fat.

Folate supports normal cell division and the formation of red blood cells, while fibre helps maintain normal bowel function. Rapeseed oil provides mainly unsaturated fat. The amount of oil used affects the fat and energy content, and added salt can change the salt content of the prepared dish. Full nutritional figures are in the tables below.

Nutrition per 100g

Nutrient

Per 100g

Energy

35 kcal

Energy

147 kJ

Fat

1.5g

of which saturates

0.12g

Carbohydrate

2g

of which sugars

2g

Fibre

1.6g

Protein

3.5g

Salt

0.01g

Alcohol

0g

Water

90g

Cholesterol

0mg

Vitamins and minerals per 100g

Nutrient

Per 100g

Vitamin A (retinol equivalent)

39µg

Vitamin D

0µg

Vitamin E

1.7mg

Vitamin C

10mg

Thiamin (B1)

0.11mg

Riboflavin (B2)

0.17mg

Niacin (B3)

1.8mg

Vitamin B6

0.18mg

Vitamin B12

0µg

Folate

123µg

Calcium

28mg

Iron

0.6mg

Magnesium

15mg

Phosphorus

79mg

Potassium

342mg

Sodium

4mg

Zinc

0.6mg

Copper

0.14mg

Selenium

11µg

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, raw

25 kcal

2.9g

0.6g

–

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 (Calculated from steamed. Water and fat analysed, 2017. 7 samples, fresh, imported, including tips and thicker stems, tough base of stems removed. Roasted in 0.5-1 tbsp oil for 10 minutes). "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