May 17, 2000 (New York) -- Put down the salt shaker and forget super-sizing the french fries. Cutting back on salt, say high blood pressure experts, can not only bring high blood pressure under control but it may reduce the risk of heart attack and stroke.
Results of a federally sponsored study, which involved more than 400 people aged 22 or older and looked at the effect of salt intake on blood pressure, suggests that most Americans are consuming more than twice as much salt as they should, and that's a problem, the experts say.
Salt, according to a team led by a Harvard researcher, appears to be a major factor in blood pressure. Frank Sacks, MD, who presented the study results at a press conference sponsored by the American Society of Hypertension, says that reducing daily salt intake to just 1,500 mg, instead of the 3,300 mg consumed by most Americans, can reduce blood pressure without the use of blood pressure medications. He says that cutting back on salt had the same positive results regardless of age, sex, or race.
And for those who want to maximize the health impact of salt reduction, the best approach is to combine it with a diet that emphasizes whole fruits and vegetables instead of processed foods, he says. In the study, persons with high blood pressure found that the combination of healthy diet and salt restriction significantly lowered their blood pressure, Sacks says.
Systolic pressure -- the first or higher number when blood pressure readings are given -- came down more than 11 points, and diastolic -- the second number -- came down an average of seven points. Even persons who didn't have high blood pressure lowered their blood pressure by restricting salt, Sacks says. He also says that cutting back on salt can lower blood pressure even if one doesn't switch to the healthy diet he recommends.
Currently, the government recommends a daily salt, or sodium, intake of 2,400 mg. That is too high, say Sacks and fellow researchers William Vollmer, PhD, and Eva Obarzanek, PhD. And while the recommendation is high, reality is worse. Sacks tells WebMD that most Americans actually take in about 3,300 mg of salt a day.