"The cardiovascular benefits of salt restriction remain unproven on the basis of currently available evidence, authors of a systematic review concluded.The accumulation of clinical-trial data on 6,500 participants failed to produce a statistically significant outcome for hypertensive or normotensive individuals with respect to overall mortality or cardiovascular morbidity.
Moreover, salt restriction was associated with an increased mortality risk in patients with congestive heart failure (CHF), according to a report in the Cochrane Database of Systematic Reviews."
According to the article after sodium intake is restricted there is an initial decrease in blood pressure but that effect tends to decline over time.
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