The benefit to the U.S. population would be comparable to cutting smoking by 50 percent, significantly lowering obesity rates and giving cholesterol drugs to virtually everyone to prevent heart attacks, said Dr. Kirsten Bibbins-Domingo of the University of California, San Francisco and colleagues.

Such a goal, they said, is readily attainable.

Salt, which contributes to high blood pressure and heart disease, is widely overused in the United States, with 75 to 80 percent coming from processed food. Men typically consume 10.4 grams per day. For women, the average is 7.3 grams. Its use is rising.

A reduction of 1 gram would prevent 11,000 to 23,000 strokes, 18,000 to 35,000 heart attacks and 15,000 to 32,000 deaths from any cause, the researchers reported in New England Journal of Medicine.

Women would benefit the most.

Even if the federal government were to bear the entire cost of a regulatory program designed to reduce salt consumption, the government would still be expected to realize cost savings for Medicare, saving $6 to $12 in health expenditures for each dollar spent on the regulatory program, the researchers wrote.

In a commentary, Dr. Lawrence Appel and Cheryl Anderson of Johns Hopkins University in Baltimore said the new study may be underestimating the benefits.

They said it did not take into account how it would help children or the fact that lower salt intake may reduce the risk of stomach cancer, kidney disease, congestive heart failure and osteoporosis.

(Editing by Mohammad Zargham)

California Medicine