Cutting Salt Could Prevent Deaths...
Cutting just half a teaspoon of
salt a day from the intake of most U.S. adults would prevent 92,000 deaths, 99,000 heart attacks and 66,000 strokes according to predictions from computer models that used actual clinical data to judge the effects of the change.
Less salt is as big a benefit to health as is quitting smoking, according to work that appears in the January 20, 2010 issue of the New England Journal of Medicine.
"The [heart] benefits of reduced salt intake are on par with the benefits of population-wide reductions in tobacco use, obesity, and cholesterol levels," explains Kirsten Bibbins-Domingo, PhD. Limiting your daily salt intake by half a teaspoon (3 grams) isn't enough of a reduction to bring many diets to the 3.7 grams a day that's the recommendation for about 70% of adults, or the 5.8 grams a day suggested for high risk adults.
In fact, the average U.S. man gets 10.4 grams of salt a day; the average U.S. woman gets about 7.3 grams a day.
Some of the biggest reductions in dietary sodium would need to come from food makers who would have to stop adding so much to processed foods.
The
U.S. Department of Agriculture estimates that 77% of the salt in our diet comes from these types of foods. Surprisingly, the salt shaker accounts for just 6% of our daily intake, while salt used in cooking accounts for a mere 5% of intake.
Would we miss the salt if it were removed? "In the United Kingdom, a population-wide reduction in dietary salt of 10% was achieved in four years without a reduction in sales of the food products included in the initial effort and without consumer complaints about taste," Bibbins-Domingo and her colleagues point out.
Another plus, once you cut back on the salt (even if you don't know you're doing so) this encourages you to prefer less salty foods. The change in your taste for salt comes in just a few weeks.
In an editorial published along with the study, Johns Hopkins researcher Lawrence J. Appel, MD, MPH and Cheryl A.M. Anderson, PhD, MPH call for more regulations.
Of course such restrictions would certainly be opposed by industry, as we've seen with the effort by New York City to regulate sale in prepared foods. Opposition to the measure comes from the Salt Institute, a trade group that represents the industry.
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Representative for the salt industry aren't convinced that the moderate reduction in
blood pressure from cutting salt is worth the risks to health that come from depriving our bodies of this natural, necessary nutrient used for many thousands of years.
Morton Satin, speaking for the Salt Institute says, "Mediterranean diet consumers, such as the Italians, consume 40% more salt than Americans, but because they eat a
balanced diet with plenty of salads and vegetables, they have the best cardiovascular figures in the world. I'm concerned that the reduction in salt in canned vegetables could lead to less vegetables being consumed. This would be harmful to consumers, especially children."
Making the change, even cutting just 1 gram of salt from your diet, would have quite an impact on the health of many of us according to the researchers.
If you have risk factors for early death or
heart problems, limiting your salt intake could be a very smart move and natural too. What's more, you don't need to do anything beyond making the change in your salt intake to get the benefit to your health.
Acknowledgements: Kirsten Whittaker
Daily Health Bulletin Editor