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Potatoes, old, boiled in unsalted water, flesh only

Old potatoes are mature potatoes rather than new potatoes. The figures here describe potato flesh only, without the skin, boiled in unsalted water. They mainly provide carbohydrate, with some fibre, vitamins and minerals. Per 100g, they contain 18g of carbohydrate, 1.6g of fibre, 365mg of potassium and 9mg of vitamin C.

Carbohydrate provides energy, while fibre supports normal bowel function. Potassium contributes to normal nerve and muscle function, and vitamin C helps the body absorb iron from plant foods. Potatoes prepared this way are low in fat and contain no added salt. Adding butter or salt changes their nutritional content. Full nutrient figures are in the tables below.

Nutrition per 100g

Nutrient

Per 100g

Energía

74 kcal

Energía

315 kJ

Grasa

0.1g

of which saturates

0.03g

Carbohydrate

18g

of which sugars

0.8g

Fibra

1.6g

Proteína

1.8g

Sal

0g

Alcohol

0g

Agua

79g

Colesterol

0mg

Vitamins and minerals per 100g

Nutrient

Per 100g

Vitamin A (retinol equivalent)

Trace

Vitamina D

0µg

Vitamina E

0.01mg

Vitamina C

9mg

Thiamin (B1)

0.21mg

Riboflavin (B2)

Trace

Niacin (B3)

0.5mg

Vitamin B6

0.06mg

Vitamina B12

0µg

Ácido fólico

18µg

Calcio

6mg

Hierro

0.34mg

Magnesio

18mg

Phosphorus

31mg

Potasio

365mg

Sodio

1mg

Zinc

0.2mg

Cobre

0.06mg

Selenio

Trace

Iodine

1µg

Other types of potatoes

Alimentos

Calories per 100g

Protein per 100g

Fat per 100g

Fibre per 100g

Potatoes, old, boiled in salted water, flesh only

74 kcal

1.8g

0.1g

1.6g

Potatoes, new and salad, boiled in unsalted 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 salted 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). "Trace" means only a very small amount was found. Nutrients that were not measured are not shown. Salt is calculated from sodium.

Lecturas adicionales y referencias

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

Historial del artículo

La información en esta página está escrita y revisada por pares por clínicos calificados.
  • 4 Nov 2026 | Última versión
  • 3 Nov 2026 | Publicado originalmente