We don’t need the same amount of salt all the time. Why is that?
When it is hot and we perspire more, or when we exercise and perspire more, we lose more salt which needs to be replaced. On days like that, we need to eat more salt. One of the reasons why runners sometimes get cramps is because of a high salt loss and not enough salt intake to compensate.
The reviewed research is interesting because it looked at salt intake and mortality related to all cause mortality and cardiovascular disease events(Graudal N,et al. 2014). Looking at data from 25 studies it was found that both low salt intake and high salt intake are associated with increased mortality.
This makes sense. Before you cut out all salt, make an assessment of how much you perspire and take into consideration what your blood pressure is.
If your blood pressure is high and your ankles are swollen, obviously you may need to reduce your salt intake. On the other hand if you perspire a lot because you exercise and your blood pressure is normal, you probably don’t need to reduce your salt intake.