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PAHO: Eating less salt prevents high blood pressure and cut risks of heart attack and stroke by 25 percent


Published: May 21, 2013

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At least 30 percent of people in the Americas suffer from hypertension, or high blood pressure, for which excessive dietary salt is the main risk factor. For 1 of 3 people who have hypertension, cutting sodium intake can reduce their blood pressure to normal levels. Reducing dietary salt could also prevent an estimated 25 percent of heart attacks and strokes worldwide.

“High blood pressure is a treatable condition and can be prevented by lifestyle changes, especially through lower salt intake and more exercise,” said Pedro Orduñez, regional advisor on cardiovascular disease at the Pan American Health Organization/World Health Organization (PAHO/WHO), on the occasion of World Hypertension Day, on May 17.

Reducing salt intake at the population level is the most cost-effective public health intervention to reduce hypertension. PAHO/WHO recommends consuming less than five grams of salt — or 2,300 milligrams of sodium — per day. In the Americas, salt intake is double that: nearly 11 grams per day in most of the region’s countries.

Although people add salt to foods during preparation and at the table, a larger proportion of the sodium people consume is through processed, canned and ready-to-eat foods, noted Branka Legetic, interim coordinator of PAHO/WHO’s Prevention and Control of Chronic Diseases project and head of the Salt Reduction Initiative. One option that consumers can take is to avoid these processed foods and instead focus on foods that are fresh, natural and free of added salt.

Hypertension — blood pressure equal to or higher than 140/90 — is not just an issue of personal behavior, however. Policy changes and multi-sector action are also important to shape the environment in ways that facilitate healthy eating.

"All sectors of society need to participate. Legislative bodies can adopt laws to protect the health of their populations, and governments can strengthen the work of their regulatory authorities and promote incentives to create healthy environments in schools. Dining halls and cafeterias in companies and government institutions can offer food with less sodium, and the food industry has the responsibility of reformulating products to reduce salt,” said Orduñez. He added that the role of civil society is equally important in advocating for healthy public policies and monitoring compliance with established regulations.

This year’s World Health Day (April 7) was dedicated to hypertension. WHO issued a call to intensify efforts to prevent and control high blood pressure, which is the main risk factor for cardiovascular deaths and is estimated to affect more than 1 in 3 adults worldwide, or some 1 billion people.

Read labels

Many people could improve their eating habits by selecting products with lower sodium levels. Reading and understanding food labels can help consumers evaluate nutritional content as well as the amount of salt in foods.

Experts recommend comparing labels from different products and selecting those that have less than 15 percent of the daily recommended sodium intake.

Foods in the Americas that typically contain more salt include bread and other bakery goods, soup cubes, processed meats, sausages, cheese, prepared and canned foods, soups, snacks (such as French fries) and sauces.

Dos and Don'ts of reducing dietary salt


Buy and eat more fresh food, especially fruits and vegetables.

If you use processed foods, choose brands with lower percentages of sodium indicated on the label (under 15 percent).

Use unsalted spices to make meals more flavorful.

Add less salt to food in restaurants and request less salt added in preparation of food.

Use fewer sauces in meals.


Don't buy or eat foods if the sodium content is higher than 15 percent of daily recommended amount (indicated on the label)

Don't buy food that is known to have high salt content.

Don't add salt while preparing, cooking or serving food.

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