Keeping sodium intake low may prolong your life according to the new study that set out to ascertain the long term danger of eating too much sodium.
Based on the following more then 3 000 people elevated blood pressure for almost 24 years. Researchers found that rish of death from any cause of rose in a straight line along sodium intake.
Our results are not surprising because we know that sodium increase the blood pressure and we found that it increase the risk of cardiovascular disease.” said of lead author Nancy Cook of Brigham and Womens Hospital and Harvard Medical School.
But some previous studies found a J shaped curve, Nancy Cook told the Reuter Health by e-mail, indicating higher rate of death among thos consuming the lowest sodium.
“We found that a direct linear association, that those with the lowest intake of sodium levels had the lowest mortality rate,” Cook said.
They used data from 2 trials of hypertension prevention under taken from 1987 to 1990, and 1995. At the start of the trials, participants has blood pressure that is higher than considered healthy but below the thres hold of hypertension.
This trials assessed, among other thing the effect on the blood pressure of reducing sodium in the diet and losing some wight compared to making no changes in sodium intake, and followed by the participants for 3 to 4 years.
On the new study, Nancy Cook team used death records to follow up thos participants for a total of 24 years after the test.
Merging data on particpants in both trials, the researchers found 3 126 people, 251 dead. Those had been in the sodium reduction group during that test and trials had consistently fewer deaths, giving them a 15% lower risk of death.
The researchers also found, that the risk of death rose steadily with sodium intake starting at low sodium intake 2 300 miligrams per day or less, all the way to high intake of 4 800 miligrams or more daily.
“Everybody need some salt,” Nancy Cook said. “it’s an essetial nutriest, but we need far less than we consume”.
Read the food labels of the packaged foods can help us, she added.
Of course, the best advice here is having a healthy diet, filled with fresh vetables and fruits, which can lower the sodium,” Nany Cook said.