On the heels of a study linking sugary drinks to 25,000 U.S. deaths a year, new research suggests salty food is even more dangerous.The new study, by the same Harvard research team, linked excessive salt consumption to nearly 2.3 million cardiovascular deaths worldwide in 2010. One in 10 Americans dies from eating too much salt, the researchers found.“The burden of sodium is much higher than the burden of sugar-sweetened beverages,†said Dr. Dariush Mozaffarian, an epidemiologist at the Harvard School of Public Health and author of both the salt and sugary drink studies. “That’s because sugar-sweetened beverages are just one...