The humble spud is the best and most affordable source of dietary potassium, needed for the proper function of all human cells, tissues and organs.Potatoes have more potassium than bananas and also provide almost half the daily requirement of vitamin C, according to a new study presented to the American Dietetic Association.
The study found that potatoes provide significantly better nutritional value for the price than most other raw vegetables.
They were the largest and most affordable source of potassium of any vegetable or fruit.
“Potatoes deserve credit for contributing to higher diet quality and increasing vegetable consumption,” said lead researcher Dr Adam Drewnowski from the University of Washington.
Further analyses showed individuals who ate potatoes (baked, boiled and roasted) had higher intakes of potassium and vitamin C.
Potassium is crucial to heart function and plays a key role in skeletal and smooth muscle contraction making it important for normal digestive and muscle function.
Many foods contain potassium, including all meats, some types of fish (such as salmon, cod, and flounder), and many fruits, vegetables, and legumes.