You must've made a typo with your salt. 1500 mg is a reasonable daily intake.
Also, with the bacteria it isn't so much where they are as it is that there is usually a lot of variation within each species, with only some of the varieties being virulent.
Also, with the bacteria it isn't so much where they are as it is that there is usually a lot of variation within each species, with only some of the varieties being virulent.