One fingerling potato is less than 30 calories. The tasty root vegetable has no fat, cholesterol or sodium, but it is rich in potassium. The main health benefit of potassium is lower the blood pressure. Many athletes eat a potassium rich diet as it helps to prevent cramps and cardiovascular irregularities. A lot of potassium is lost during exercise which is why athletes need to have more potassium in their bodies than the average person.
Potassium works alongside sodium to maintain a healthy water balance in the body. It is thought that an increase in potassium leads to an increase in sodium excretion. This is thought to help to prevent hypertension.