When the Food and Drug Administration revised food-labeling laws back in 1997, the agency established a system whereby manufacturers could petition the FDA to allow them to make health claims on food labels. So far, only a few manufacturers have ventured through this system. The latest is Tropicana Products Inc., who recently received permission for manufacturers to highlight the health benefits of the potassium in their fruit, vegetable and juice products that meet certain requirements. Diets containing foods that are good sources of potassium and low in sodium may reduce the risk of high blood pressure and stroke. These words are already beginning to appear on a few foods, including some brands of orange juice.
Potassium is an electrolyte.
Like sodium, it helps balance the acidity and alkalinity of the body s fluids. 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.