Originally Posted by Jean Beetham Smith

There is some evidence that high levels of sodium ehances calcium absorbtion from the gut, and so indirectly causes an increase in the amount of calcium excreted by the kidneys into the urine, where it can contribute to stone formation. All of this is not fully understood, but calcium restriction no longer seems to be the first recommendation, although oxalate restriction is still recommended. Of course, increased water consumption is still universally recommended.