The amount of salt in people’s diets declined 15 percent from 2003 to 2011. And deaths from heart disease fell by 40 percent and deaths from stroke decreased by 42 percent during that period, according to the study.
Programs to reduce salt consumption throughout the United Kingdom began in 2003.
However, the researchers also said that salt consumption in England is still too high and much more needs to be done to lower salt content in foods. Salt boosts blood pressure, experts note, which is a major risk factor for heart disease and stroke.
The new study was published online April 15 in the journal BMJ Open.
For the study, researcher Graham MacGregor, at the Wolfson Institute of Preventive Medicine in London, and colleagues analyzed data gathered from thousands of people who were followed from 2003 to 2011.
During that time, the participants showed improvements in a number of risk factors for coronary disease. Average cholesterol and body pressure levels fell, consumption of fruits and veggies rose, and smoking charges decreased, according to some sort of journal news release.
While these changes contributed towards decrease in heart sickness and stroke deaths, it had been the 15 percent cut of salt intake that had the best impact, the study creators speculated.
“The reduction in salt intake is likely to be an important contributor to the falls in blood pressure in England from 2003 to 2011. As a result, the decrease in salt intake would have played an important role in the reduction in stroke and ischemic heart disease mortality during this period,” the researchers wrote.
However, they noted that 70 percent of adults in England still consume more than recommended daily maximum amount of salt, with 80 percent of salt intake coming from processed foods.
“Therefore, continuing and much greater efforts are needed to achieve further reductions in salt intake to prevent the maximum number of stroke and heart disease deaths,” the study authors concluded.
While the study found a link between reduced salt consumption and death rates, it didn’t prove a cause-and-effect relationship. Also, the authors could not account for physical activity levels, another possible factor.
Source: HealthDay News