
Originally Posted by
LissaJous
As I said, I add salt routinely, according to training load. It's as important during training as during race prep and is related to cellular hydration, which you want to maintain at all times. Having done that, I don't further boost it before race days. It's after race day that it's more important, if you have become dehydrated. If you keep feeling much more thirsty than usual, then a nun tab in your drink will help the body absorb and use the water.
Edit: I hope that didn't come accross as harsh, I just mean that you may as well add your salt over a longer period of time rather than doing anything different and cramming it in as race prep. And I agree completely with training on the right terrain for the race and getting your body used to working hard.