Just cut out salt (I've yet to see a low-sodium cook book) as there is no substitute for (sodium chloride) salt.. Lime crystals (dried lime juice) is said to make a substitute sensation for salt. I kno there used to be potassium chloride salt substitutes but haven't seen it for a while. If you are trying to reduce high/elevated blood pressure, there is a proportion of the population (myself included) who have blood pressure levels that are not responsive to changes in sodium consumption.