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SATURDAY, April 25 (HealthDay News) -- Eating a low-salt diet is one of the most important lifestyle changes people with heart failure can make, but only a third adhere to the recommendation, a new study has found.
Researchers asked 116 people with heart failure to write down everything they ate for three days. Though the recommended daily intake of sodium for people with heart failure is 2,000 milligrams, participants in the study were consuming an average of 2,671 mg a day.
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Many weren't purposefully ignoring doctor's recommendations, said study co-author Carolyn M. Reilly, a postdoctoral fellow at Emory University in Atlanta. Most thought they were taking steps to reduce their sodium by putting less salt on their foods, but she said they were focused on the wrong target.
About 70 percent of the sodium in the American diet comes from processed foods such as canned soups, lunch meats and fast food, not from salt added to home-cooked meals.
Sodium is added to foods to give them a longer shelf life, enhance texture and mask bitterness.
"There is so much salt hidden in foods that patients aren't aware of," Reilly said in a news release from the American Heart Association.
The research was to be presented Saturday at the American Heart Association's 10th Scientific Forum on Quality of Care and Outcomes Research in Cardiovascular Disease and Stroke in Washington, D.C.
The American Heart Association recommends that healthy people try to eat less than 2,300 mg of salt a day. Some people -- including blacks, middle-aged and older adults and people with high blood pressure -- should aim for less than 1,500 mg a day.
"The patients themselves were shocked to find out they were eating more than 2,000 mg of sodium a day," Reilly said.
Some of the highest-sodium foods eaten by the study participants included hot dogs, sausage and bacon, canned soups, salad dressings, condiments, fast food, lunch meat, bread, pizza, processed entrees, prepared grits and cornbread.
More information
The American Heart Association has more on low-sodium diets.
-- Jennifer Thomas
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