Are low-sodium diets just for people with high blood pressure?

By Kathleen M. Zelman, MPH, RD, LD

WebMD Expert Column

You don't need to worry about the sodium in your diet unless you have a health condition like heart disease or high blood pressure -- right? Wrong. Americans love their salt, and the U.S. Centers for Disease Control and Prevention recently issued a report saying that 2 out of 3 of us need to seriously cut back our sodium intake.
It may not have calories, but sodium is not as innocent as many people think.
Too much sodium can increase the risk for high blood pressure, heart disease, and stroke. This is cause for concern, as heart disease and stroke are the No. 1 and No. 3 killers of men and women in the United States each year. (Cancer is No. 2.)
The U.S. Department of Agriculture estimates that the average American consumes 4,000 milligrams (mg) of sodium a day – far more than the maximum recommendation of 2,300 mg (the equivalent of one teaspoon of salt). But the CDC report suggests that 69% of Americans need to cut back even further, to no more than 1,500 mg of sodium per day. Count yourself among this 69% if you're over 40, African-American, or have high blood pressure.
The Mintel research group estimates that more than half of U.S. consumers are now monitoring the sodium in their diets. And manufacturers are responding.
Campbell’s, for example, is reducing the sodium in many of its soups. The number of new food products claiming to be low-sodium, no-sodium, or reduced-sodium increased 115% from 2005 to 2008.
That’s a good thing, because 70%-80% of the sodium in U.S. diets comes not from the salt shaker but from packaged, processed, restaurant, and store-bought foods. Only about 5% comes from salt added during cooking; about 6% comes from salt added at the table.
In May, the Center for Science in the Public Interest released a report that found 85 out of 102 restaurant meals from 17 popular chains had more than a full day's worth of sodium. Some had more than four days’ worth.
But reducing sodium is not easy. Our taste buds have grown accustomed to the salty taste of most foods and unlike for sugar, there are few convincing substitutes. Not only does sodium flavor foods, it also acts as a preservative and as an inhibitor in leavening agents. Sodium is found not only in salt but also in baking soda, baking powder, and MSG.
Still, if you're one of the two out of three adults at risk for health problems from too much sodium, the CDC report should serve as a wake-up call to lower the amount of sodium you consume. Here are seven simple steps to cut the sodium in your diet:

* Read nutrition labels on foods you purchase to see how much sodium they contain.
* Ask for salt-free or low-salt preparation at restaurants.
* Eat more fresh, unprocessed foods, like fruits and vegetables, which are naturally low in sodium.
* Reduce the amount of sodium in canned foods by thoroughly draining and
rinsing them.
* Go easy on high-sodium condiments like soy sauce, mustard, and ketchup.
* Use herbs, citrus, and salt-free spices to season recipes.
* Learn the lingo: Sodium-free or salt-free = less than 5mg/serving
o Very low sodium = 35 mg or less/serving
o Low sodium = 140 mg or less/serving
o Reduced or less-sodium = 50% less than regular version
o Unsalted or no added salt = no salt added to the product

Kathleen Zelman, MPH, RD, is director of nutrition for WebMD. Her opinions and conclusions are her own.


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