Foods rich in potassium such as blueberries and sweet potatoes may help offset heart risks associated with high-salt diets, a study suggests. The research, which examined the diets of more than 12,000 people over an average of 15 years, found higher death rates from heart disease in those who had elevated sodium to potassium ratios. The report from the U.S. Centers for Disease Control and Prevention was published today in the Archives of Internal Medicine.
