Sodium Intake on a Whole Food, Plant Based Diet &amp; Running in the Heat I'm a distance runner who trains for a couple hours at a time in the afternoons, and around this time of the year in my area temperatures get around mid to upper 90's, occasionally above 100 (Fahrenheit) with considerable humidity. As such it's not surprising that I'm sweating a great deal, and thus losing a lot of salt through my sweat. 

My diet provides little sodium on its own, and what I'm essentially wondering is whether or not there is such a thing as consuming too little sodium. Conventional diet knowledge seems to say that as little sodium as possible is the best route, seeing as I lose so much in my sweat would it not be a good idea to add salt/sea salt to my meals to make sure my body has enough? Has anybody experienced any noticeable benefits to adding more salt, or any drawbacks from consuming too little?

Thanks!