Can anyone tell me what number I should work for to "keep away" from sodium in MG's .. to work on "low sodium eating" ....

I keep thinking that I'm being good with sodium, but still seem to be holding onto the water .. and I haven't found anywhere on the site, that speaks of counting sodium MG's ..

Can anyone send me in a direction.. as I have found out that besides water -- everything bought in the store has SOME sodium in it, since it's used in preservation .. and here I think I'm doing good .. but when I tally up my numbers (such as I was in fitday) .. the sodium number looks way outrageous to me ...

Please and thanks