NEW YORK (CNNMoney) -- Subway sandwiches just got a little less saltier.
The restaurant chain announced Monday it has reduced sodium levels in its sandwiches by 15% across the board, while its Fresh Fit sandwich line gets an even steeper 28% reduction.
The sodium reduction is the result of changes to the bread used, while modifications to meat allow for additional savings.
The lower sodium levels are the result of a research and development process that has been underway since 2007, and Subway said it will result in 450 fewer tons of sodium in the American diet.
"Sodium" is, of course, a naughty word. Especially in the United States, where Americans eat too much of it, and high-blood pressure is a widespread health problem.
"We are trying to be a little more responsible with the sodium levels," said Lanette Kovachi, the chain's corporate dietician.
Shanon Trueman, a food science analyst at research and advisory firm Nerac, said it makes sense that Subway lead the way on sodium reduction -- especially given the emphasis they place on health in marketing campaigns.
It is a smart financial move as well, Trueman said.
"People are looking favorably on a food producer that is looking to help people be healthy," she said.
Kovachi said that Subway -- the world's largest sandwich purveyor with 34,443 stores -- has already lowered sodium levels in several overseas markets, including New Zealand and Australia. The changes were well received by customers -- and there is no noticeable difference in taste, she said.
Some of the chain's most popular sandwiches are in for a big reduction. For example, the 6-inch ham sandwich will drop from 1260 mg of sodium in 2009 to 830 mg today.
For comparison, a McDonald's Big Mac checks in at 1040 mg of sodium.
Shares of several uranium miners are soaring this year on hopes that Donald Trump will commit more investments to nuclear power. But investors need to get careful. The stocks are as volatile as radioactive elements. More
President Trump promised to 'buy American and hire American.' He says his policies will create 25 million new jobs, the most of any U.S. president in history. CNNMoney lays out just how hard that will be. More
Apple is suing Qualcomm for allegedly charging 'excessive royalties' and withholding payments in retaliation for Apple cooperating with a regulatory investigation into the chip supplier. More
In 1998, Ntsiki Biyela won a scholarship to study wine making. Now she's about to launch her own brand. More
If you're smart about when you first claim Social Security, you can increase your benefits and reap the rewards for the rest of your life. More