I have done a lot of salt; real salt / himalaya type for 3 years; It has been a blessing! I also have reccommended it to all the cases I have been given Iodine to (30-40 people on the protocol now) I and they are rid of palpitations, sleep is better, kidney problems much better, so are water retention (wedding rings loose, lol).
Salt is a calming mineral.
To much sodium of the refined type is a quite different arena; and not to be mixed with the type of salt we reccomend here for flushing.
Remember; if you give a saltwater aquarium fish refined salt water it will die within shortly.
If you on the other hand give it full spectrum salt water it will thrive.
Potassium is important, yes, but I would never reccomend it to someone that has any kind of palpitation problem whatsoever; as this can contribute to a worsening.
In this case we are in to a hyper T where palpitations can be quite scary. Real salt is a key here, not potassium; unless you only eat fastfood and no greens / fruit; then the salt probably are to high versus potassium.
Real salt and Iodine together do wonders for a jittery heart.
I have filled people with more salt they ever thought they could consume; and there is improvements all over; the only thing that happens if they take to much is that they get thirsty!