Link? Studies about salt are notoriously difficult, because hardly anyone actually adheres to a truly low-salt diet, so you get the equivalent of a study that tries to discern whether smoking 1.5 pack of cigarettes (which takes lots of restrain) is any better than 2. Personally, it took 2 months for my blood pressure to start coming down on a high-vegetable low-sodium diet, and I notice that many people already think they are not salt-sensitive if it doesn't work in 2 days. I'm still astonished when I take my blood pressure and it is 115/70 or so. It used to be consistently 150/90.