I just ordered a 25# bag of Real Salt (only have a few #s left, shared it with friends) and they were out! Canning salt is good because it has no additives. I have about 6 pounds but that’s not enough. I do have a lot of regular salt though.
It’s basically impossible to eat without salt and for most people it is needed for health.
(Speaking of which, I hope yours is improving!!)
Go into a rural area that has a grain elevator and you can buy salt by the 50 pound sack or more...cheap also....