Potatoes, old, raw, flesh only

Old potatoes are mature potato tubers. The figures here describe the raw flesh only, without the skin, from white and red varieties sampled in autumn and winter. They mainly provide carbohydrate, with some fibre and smaller amounts of protein. Per 100g, they contain 20g of carbohydrate, 2g of fibre, 14mg of vitamin C and 443mg of potassium.

Carbohydrate provides energy, 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. The raw flesh contains little fat or salt, but cooking methods and added ingredients can change the nutritional content. Full nutritional figures are in the tables below.