now they say SALT is killing me -- first sugar, now salt ... ahhhhhh I need t...
It's not salt, it's excess salt. And even then it's really more a combination of too little water and too much salt, as far as most diets go.
That said, yes, if it is your desire, you should be free to do as you please, but I am free to deny medical care to you to the extent it cost me money or causes people who need care through no fault of their own. (Assuming it is a scarce resource, and/or is eventually paid for by insurance or taxes)
It's marginally analogous to any sort of over consumption, in that doing so causes ripples which make a resource unavailable for others who truly need it. The resource being salt or healthcare or cemetery space. ;-)