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Potatoes, old, boiled in salted water, flesh only

These figures describe mature potatoes boiled in salted water, with the skin removed and only the flesh included. They mainly provide carbohydrate, with 18g per 100g, and also supply some fibre, vitamin C and potassium. Per 100g, they contain 1.6g of fibre, 9mg of vitamin C and 365mg of potassium.

Carbohydrate is a source of energy for the body, while fibre supports normal bowel function. Vitamin C helps the body absorb iron from plant foods, and potassium contributes to normal muscle and nerve function. Salt added during cooking contributes to the salt content, which is worth noting when monitoring salt intake. Full nutrient figures are provided in the tables below.

Nutrition per 100g

Nutrient

Per 100g

Energy

74 kcal

Energy

315 kJ

Fat

0.1g

of which saturates

0.03g

Carbohydrate

18g

of which sugars

0.8g

Fibre

1.6g

Protein

1.8g

Salt

0.16g

Alcohol

0g

Water

79g

Cholesterol

0mg

Vitamins and minerals per 100g

Nutrient

Per 100g

Vitamin A (retinol equivalent)

Trace

Vitamin D

0µg

Vitamin E

0.01mg

Vitamin C

9mg

Thiamin (B1)

0.21mg

Riboflavin (B2)

Trace

Niacin (B3)

0.5mg

Vitamin B6

0.06mg

Vitamin B12

0µg

Folate

18µg

Calcium

6mg

Iron

0.34mg

Magnesium

18mg

Phosphorus

31mg

Potassium

365mg

Sodium

64mg

Zinc

0.2mg

Copper

0.06mg

Selenium

Trace

Iodine

1µg

Other types of potatoes

Food

Calories per 100g

Protein per 100g

Fat per 100g

Fibre per 100g

Potatoes, old, boiled in unsalted water, flesh only

74 kcal

1.8g

0.1g

1.6g

Potatoes, new and salad, boiled in salted water, flesh and skin

68 kcal

1.8g

0.1g

1.8g

Potatoes, old, baked, flesh only

77 kcal

2.2g

0.1g

–

Potatoes, old, baked, flesh only, weighed with skin

52 kcal

1.5g

0.1g

–

Potatoes, old, raw, flesh only

82 kcal

1.9g

0.1g

2g

Potatoes, old, roasted in sunflower oil, flesh only

161 kcal

2.6g

5.7g

2.7g

Potatoes, new and salad, boiled in unsalted water, flesh and skin

68 kcal

1.8g

0.1g

1.8g

Potatoes, old, baked, flesh and skin

97 kcal

2.5g

0.2g

2.6g

Potatoes, old, microwaved, flesh and skin

92 kcal

2.6g

0.1g

2.7g

Potatoes, new and salad, flesh only, raw

68 kcal

1.7g

0.1g

1.8g

Potatoes, old, mashed with butter

102 kcal

1.9g

3.9g

1.4g

Potatoes, old, mashed with reduced fat spread

93 kcal

1.8g

2.8g

1.4g

Potatoes, old, potato wedges, with skin, cooked in sunflower oil, homemade

145 kcal

2.9g

3.8g

3g

Potatoes, old, roasted in corn oil

161 kcal

2.6g

5.7g

2.7g

Potatoes, old, roasted in lard

161 kcal

2.6g

5.7g

2.7g

Potatoes, old, wedges, with skin, homemade, cooked in rapeseed oil

145 kcal

2.9g

3.8g

3g

Potatoes, old, roasted in rapeseed oil

161 kcal

2.6g

5.7g

2.7g

Potatoes, duchesse

124 kcal

3.1g

5.1g

1.6g

Potatoes, new, frozen, `roast' in corn oil

157 kcal

2.5g

6.6g

3g

Potatoes, new, canned, re-heated, drained

63 kcal

1.5g

0.1g

–

About these figures

Values are per 100g of the food as described (22 samples, autumn and winter, including white and red varieties, pre-packed and loose, based on boiled in unsalted water). "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.
  • 4 Nov 2026 | Latest version
  • 3 Nov 2026 | Originally published