system
Given the following post, respond as if you're commenting on Reddit:
human
If salt is Sodium Cloride, then what is "low sodium salt"? Is it just a marketing term or is there more?
gpt
They use potassium chloride.   

I also believe there are some sodium chloride based salts that are very coarse so there will be less sodium per tablespoon or whatever.  It’ll still be the same amount per weight.  It’s just that less will fit in a tablespoon due to its coarseness.