It is vital for normal muscle contraction, nerve impulses, maintaining the body's fluid balance and proper functioning of the heart and kidneys. Together with sodium and calcium, it also helps regulate blood pressure. First, Epidemiological and animal studies indicate that the risk of stroke-related deaths is inversely related to potassium intake over the entire range of blood pressures, and the relationship appears to be dose dependent. Secondly, A diet containing approximately 3500 milligrams of potassium daily may contribute to reduced risk of stroke, which is especially common among blacks and older people of all races. Finally, Vegetables and fruits are good sources of potassium.
Potassium supplements are neither necessary nor recommended for the general population.
Potassium is distributed widely in foods, but is found in greatest quantity in unprocessed foods such as fresh fruits and vegetables, whole grains and fresh meats, fish and dairy products. Unprocessed foods have the added benefit for those watching their blood pressure of being low in sodium. To qualify for the new health claim, a food must provide at least 10 percent of the government s daily value for potassium and be low in sodium, fat and cholesterol. Specifically, the food must contain at least 350 milligrams of potassium and less than 140 milligrams of sodium per serving. It's easy to get all the potassium you need through foods.