Most dietary sodium comes already added to food, a relatively small amount is a result of table salt, sea or otherwise.Anything that has a shelf life has salt; any food sold in a bag has salt. What I do is limit the sodium level in what I eat, item to item, meal to meal to less than the calories. I read labels and if its sodium level in mg is less than the calories than eat away. Beyond that it's an open question. When you check labels consider the calorie/sodium ratio. My red line is at .5 - twice the sodium in relation to the calories.The thing about the body is that it wants the sodium level of the body's fluid where it wants the sodium level of the body's fluid. If the body's sodium level gets too high the brain will compel its person to drink thereby diluting the sodium concentration to the point the body wants. But that leaves a real problem - what happens if the sodium level is too low? Normally the body would urinate thereby concentrating its sodium but that's not an option ... so as you say there is an imbalance. If you feel like you need a bag of salty chips or whatever is your favorite salt conveyance have a little, wait and then a little more. I think the goal should be to avoid big swings.