Excessive salt intake is directly related to the increase in blood pressure and risk of coronary heart disease and stroke. This is warned by Finnish scientists after a long twelve-year study.
During a speech at the European Society of Cardiology in Barcelona, Professor Pekka Dzhusilahti (National Institute for Health and Welfare in Finland) said: "The heart does not like salt."
Professor Dzhusilahti noted that studies conducted by them have shown that salt intake more than 13.7 grams per day may double the development of heart failure.
"Excessive amounts of salt in the diet significantly increase the risk of heart failure. Exceeding the norm of salt content in food leads to an increase in the risk of heart failure and increase blood pressure", - he said.
"People whose diets contained more than 13.7 g of salt a day, put themselves at risk of developing heart failure is twice more than those who consumed less than 6.8, the excessive intake of salt, - said the professor, - one of the main reasons high blood pressure and one of the risk factors for coronary heart disease (CHD) and stroke. "
"In addition to CHD and stroke, heart failure - one of the most popular of cardiovascular disease in Europe and the world, with the role of excessive salt consumption in its development poorly understood", - the professor said.
How was the study
In the study of Finnish scientists for twelve years participated 4630 people from 25 to 64 years. Samples of their urine were examined to determine salt intake.
Researchers subjects divided into five groups based on the daily intake of salt - of less than 6.8 g to 13.7 g more.
During the study, one hundred and twenty-one of the observed heart failure develops.
Adjusted results of the experiment on the age and gender showed that in the group that consumed more than 13.7 grams of salt per day, 2.1 times more likely to develop heart failure than in the group with the lowest intake.
How much is not harmful?
The experts divided into two camps on the issue of salt intake. For example, the national health service of England recommends no more than 6 grams per day, which is slightly higher than the who recommendation – 5 grams per day.
Professor Dzhusilahti said that the optimum daily intake of salt "probably even less than 6.8 g", the lowest level used in his study.
Man needs salt, and its physiological need - about 2-3 g
"Research is needed in the wider population for a more complete analysis of the risk of heart failure, which are associated with the consumption of salt," - said Finnish scientist.
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