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The Argument Over Salt and Health

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This is the VOA Special English Health Report, from http://voaspecialenglish.comLast month we reported about a study that showed eating even a little less salt could greatly help the heart.
The study was published in the
New England Journal of Medicine.
The scientists used a computer model to predict how just three grams less salt a day would affect heart disease in the United States.
The scientists said the results would be thirteen percent fewer heart attacks. Eight percent fewer strokes. Four percent fewer deaths.
Eleven percent fewer new cases
of heart disease.
And two hundred forty billion dollars in health care savings. Researchers said it could prevent one hundred thousand heart attacks and ninety-two thousand deaths every year.
The researchers were from the University of California, San Francisco; Stanford University and
Columbia University.
They and public health professionals
in the United States are interested
in a national campaign to persuade people to eat less salt.
Such campaigns are already in place
in Britain, Japan and Finland.
However, some scientists say such a campaign is an experiment with the health of millions of people.
Michael Alderman is among the critics. He is a high blood pressure expert and professor at Albert Einstein College
of Medicine in New York.
Doctor Alderman says that eating less salt results in lower blood pressure. But he says studies have not clearly shown that lowering salt means fewer heart attacks or strokes.
And he says salt has other biological effects. He says calling for reductionsin the national diet could have good effects. But it could also have harmful results. He says there is not enough evidence either way.
Another critic is David McCarron,
a nutrition and kidney disease expert at the University of California, Davis. He and his team looked at large studies of diets inthirty-three countries. They found that most people around the world eat about the same amount of salt. Most of them eat
more salt than American health officials advise.
Doctor McCarron says the worldwide similarity suggests that a persons brain might decide how much
salt to eat.
Both Doctor McCarron and Doctor Alderman have connections to the Salt Institute, a trade group for the salt industry. Doctor Alderman is a member of an advisory committee. But he says he receives no money from the group. Doctor McCarron is paid for offering scientific advice to the Salt Institute.
And thats the VOA Special English Health Report.

(Adapted from a radio program broadcast 03Mar2010)
Category
Education
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