I gave up sugar, how come I'm craving salt like crazy ?

A few weeks ago, I totally gave up refined sugar, and the health benefits have been amazing, but I am not craving sweets, but salt. Is this normal ? I'm eating a 3 oz. bag of salted peanuts (very salty) every day. I know that salt is not good for you, but the digestion with the no sugar is amazing - I seem to have less appetite as well . . .