Many people think twice before adding a dash of salt to their food, but don’t realize that the majority of dietary sodium comes from packaged foods and eating out, according to a new study.
Reducing sodium intake to recommended levels could result in 11.1 million fewer cases of high blood pressure each year and reduce health care costs by as much as $18 billion as an added benefit, say researchers led by Kartika Palar, a doctoral fellow at Pardee RAND Graduate School.
In the United States, the maximum daily sodium recommendation is 2,300 milligrams but the average person consumes 3,400 milligrams per day, according to the study.
The authors simulated models of different sodium-reduction scenarios, pulling from population-level data on sodium intake, blood pressure and medication use from the National Health and Nutrition Examination Survey, conducted from 1999 to 2004.
The study appears in the September/October 2009 issue of the American Journal of Health Promotion.
Jasminka Ilich, Ph.D., a professor at Florida State University, is not affiliated with the study.