Science.
A meta-analysis on the use of salt...........
Conclusions: High salt intake is associated with significantly increased risk of stroke and total cardiovascular disease. Because of imprecision in measurement of salt intake, these effect sizes are likely to be underestimated. These results support the role of a substantial population reduction in salt intake for the prevention of cardiovascular disease........................
Nov' 2009 http://www.bmj.com/cgi/content/full/339/nov24_1/b4567