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Lowering Your Sodium Intake

Charlyn Fargo on

Most of us eat too much salt. We may not use the salt shaker, but we eat out too often and we eat too many processed and packaged foods.

Three slices of bread or one teaspoon of table salt gives us all we need for a day. More than 90% of Americans consume too much sodium, which can lead to high blood pressure, hypertension and increased risk of heart disease and stroke.

We only need around 450 milligrams of sodium per day, and the recommended maximum amount is 2,300 milligrams, or 1,500 milligrams for those at risk for hypertension. But average consumption exceeds 3,000 to 3,500 milligrams per day -- or 50% to 100% above the upper limit. More than 70% of our sodium intake comes from processed and packaged foods, primarily cured meats, bread, cheese and soups.

Researchers at the University of Illinois are trying to help reduce the amount of sodium Americans consume by helping companies lower the sodium in processed foods. In a new study, researchers did a comprehensive review of the scientific literature on sodium reduction strategies in food production.

"Sodium overconsumption is a huge health concern, and the FDA has recommended sodium reduction in food since the 1980s, but we haven't succeeded yet. While the unit volume of salt in the food supply has not increased, the amount of sodium consumption has gone up, because we just consume a lot of food," says Soo-Yeun Lee, professor in the Department of Food Science and Human Nutrition at the University of Illinois and co-author of the paper.

The researchers identified five main strategies: Salt reduction, salt replacers, flavor modification, physical modification and functional modification.

Why not just remove salt from a recipe? It's not possible to completely eliminate sodium because it has both sensory and functional properties. Salt is used for meat preservation and to make bread dough rise.

The team found many of the studies combined more than one method, such as salt removal with salt replacers and flavor modification or salt removal with physical modification.

Salt replacers include potassium chloride, calcium chloride or other chloride or acid salts. However, the researchers found these substitutes tend to have a bitter taste, so they are often used in combination with flavor modifications, such as umami substances or bitter blockers.

With physical modification, another method of reduction, salt crystals are encapsulated, which changes how the salt is dissolved in the mouth. This can alter the saltiness perception, allowing for a reduction in the amount of sodium necessary to create a salty taste. You can also create an uneven distribution of the salt in a product that can further help enhance the perceived saltiness of the food product through taste contrast.

With functional modification, researchers found you could move away from a sodium-based preservative in cured meats, perhaps by using a celery-powder preservative instead of sodium nitrate.

The team is hoping their work will provide insight into the wide variety of salt-reducing technologies that exist to help food companies be more informed to use new and different strategies.

So, what's the best strategy for reducing your salt intake? Cook at home (controlling the amount of salt you add and using herbs and spices instead) and limit your consumption of processed and packaged foods. Buy a low-sodium version of canned soups or no-salt-added canned vegetables.

Q and A

Q: Is sparkling water good for you?

A: There are a few different kinds of fizzy water. Club soda contains added minerals including sodium (12 ounce of a leading club soda has 4% of the Daily Value for sodium). Mineral water contains natural minerals like magnesium and calcium. Tonic water contains quinine, a bitter compound from the bark of a tree, plus sweetener (sometimes several teaspoons per serving). Sparkling waters like LaCroix and Bubly are carbonated water and contain added flavoring but no sodium or sweeteners. Sparkling water is better than soda, for sure. In research, sugar-sweetened beverages are associated with a higher risk for obesity, Type 2 diabetes and heart disease. And a research study in the U.K. (testing 13 different drinks) found that sparkling water is just as hydrating as plain water. It may be a bit more acidic than regular water and therefore affect the enamel on your teeth, but you can always drink it through a straw. The bottom line: If you enjoy it, it's a great way to stay hydrated.

RECIPE

Who doesn't love a great chicken salad? Here's a recipe for Waldorf Chicken Salad (created at the Waldorf-Astoria hotel in New York and still popular). It's refreshing with apples, walnuts and celery. The recipe is adapted from Good Housekeeping magazine.

WALDORF CHICKEN SALAD

Servings: 4

 

1 tablespoon white wine vinegar

1/2 teaspoon honey

1/2 teaspoon salt

3 tablespoons light sour cream

2 tablespoons light mayonnaise

1 tablespoon whole-grain mustard

1/4 teaspoon pepper

2 heads Boston lettuce

3/4 cup flat leaf parsley (roughly chopped)

2 rotisserie chicken breasts, sliced

1 Gala apple, cored and thinly sliced

2 stalks celery, thinly sliced

1 cup small red seedless grapes, halved

1/2 cup walnuts, toasted and roughly chopped

In a large bowl, whisk together vinegar, honey, salt, sour cream, mayonnaise, whole-grain mustard and pepper. Separate the leaves on the Boston lettuce and toss with half of the dressing to coat, then toss with the parsley. Divide among bowls along with the chicken, apple, celery and grapes. Drizzle with remaining dressing and sprinkle with the walnuts. Serves 4.

Per serving: 345 calories; 26 grams protein; 20 grams carbohydrate; 15 grams fat (3.5 grams saturated); 4 grams fiber; 614 milligrams sodium.

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Charlyn Fargo is a registered dietitian with SIU Med School in Springfield, Illinois. For comments or questions, contact her at charfarg@aol.com or follow her on Twitter @NutritionRD. To find out more about Charlyn Fargo and read features by other Creators writers and cartoonists, visit the Creators website at www.creators.com.

 

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