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How good for your health is cutting salt from your diet?

Women's rights > blog > How good for your health is cutting salt from your diet?

Scientists have calculated that cutting salt consumption by around a quarter could halve the number of deaths from sodium-induced heart disease, according to a study conducted in a part of China with a well-above-average number of deaths linked to high-salt diets, South China Morning Post wrote.

The study, the first to try to quantify what the impact of reducing salt consumption by a defined amount would be, was conducted in the eastern province of Shandong.

It found that nearly a fifth of deaths from heart disease in the province, one of China’s most populous, could be attributed to a high-sodium diet compared with a global average of 9.5 percent.

Shandong’s cuisine is characterized by high levels of sodium, which has long been linked to an increased risk of high blood pressure and cardiovascular disease.

The researchers estimated that cutting salt consumption from 12.5 grams per day to nine grams, it could have almost halved the number of adult deaths from heart disease linked to high-sodium diets over the study period based on its effect on blood pressure.

The study, led by scientists at China’s Centre for Disease Control and Prevention, was published on Wednesday in the Journal of the American Heart Association.

Researchers analyzed health data such as blood pressure values from about 13,000 adults aged 25 to 69 in Shandong in 2011.

They also measured sodium intake using 24-hour urine excretions from 1,769 adults in the province. After comparing such data with the death rates for the province, they found that nearly 20 percent of cardiovascular disease deaths, or 16,100, could be attributed to salty diets for the year of 2011.

Of the 16,100 deaths, about 5,600 were caused by ischemic heart disease – which causes oxygen shortages in cells – and 9,000 were strokes, two of the most common illnesses caused by elevated blood pressures.

“The burden of cardiovascular disease attributable to a high sodium diet is extreme but preventable,” said Shiwei Liu, co-author of the study and epidemiology professor at the Center for Disease Control and Prevention in Beijing. “Reducing salt intake is urgently recommended.”

“Sodium intake is high in China, mainly from home cooking, eating out and pickled foods, especially in parts of northern China such as Shandong province,” Liu said.

According to official statistics, the coastal province had a population of 96 million in 2011, almost 45 percent more than that of the Britain in the same year.

Health authorities in the province and central government are working to tackle the problem and since 2011 have been campaigning to lower salt intakes among Shandong residents.

Under the program, called Shandong Ministry of Health Action on Sodium and Hypertension (Smash), the food industry has been urged to lower the amount of salt in its products and a public education campaign has tried to alert the public to the risks from a high-sodium diet.

The average salt consumption is about six percent more than the Chinese national average of 11.9 grams, according to officials.

The World Health Organization recommends adults to limit salt intake to under five grams per day, while the US Department of Health and Human Services said the daily salt intake should be no greater than 5.8 grams.

“Most people consume too much salt – on average nine to 12 grams per day, or about twice the recommended maximum level of intake,” the WHO said.

 

Source:Irandaily

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