I'm on a low salt diet due to illness, which as Ezz has said is 120mg or less per 100g, so I constantly have to read labels and I try to eat as much fresh food as possible. With foods being over processed now we have too much salt in our diets. Even things like bread are high in salt but there aren't really any low salt alternative breads. As for cheese I buy Nimbin which has the lowest salt I could find (300 mg per 100g). With peanut butter there are some no added salt varieties. I try to buy foods with 120mg or less per 100g but if none is available I buy the product with the smallest amount possible. HTH