Is a saline diet healthy or unhealthy?

You see, Kyohei, this question ... it's about saline solution but ...

There are swift-flowing rivers which dash through jagged cañons; and there are enormous plains, which in winter are white with snow, and in summer are grey with saline alkali dust.

He had to bathe the wound three times a day with a saline solution.

The Dead Sea is a salt lake with the most saline water on earth.