Beause of several health issues I need to limit my salt intake, the primary one being I'm on dialysis. My fluids are severely restricted, and eat salty foods and one drinks. A lot. You wouldn't believe how much salt is in restuarant foods.
And like sugar, plenty is hidden in those from a grocery stare.
Hot dogs are loaded with it.
Become a label reader. Some foods may scare so much that you may think you'll never eat again. Fresh foods are the better, and tastier, choice.