OK, so I'm a nerd, don't be hatin', but I blogged about this, here's the
link
in a nutshell, we need 1500-2000mg of sodium a day, 1/2 tsp has 1000mg in it, so if your salty meal has 1000mg of sodium then it would be OK I'd think. For comparison, a big mac has 1010mg sodium, yummy huh? Medium fries = 270mg