It would depend on how sensitive a person is to sodium, I'm sure. I, for one, am EXTREMELY sensitive and it WILL cause me to gain boat loads of water, which just masks any form of fat loss...if there is any.
Processed foods are the heaviest for sodium, so if you're able, it's best to cut as much of those out of your diet, as possible. Nothing is more discouraging, than working hard and the scale does not budge..or even increases. So do what you can to ditch the sodium and you will have a much easier time with the scale...and your health.