The Math of Salt Loss

I suspect the hypothermia that lead to a DNF in my recent extreme ultra trail race, was actually to a large degree caused by hyponatremia. I certainly didn't get enough sodium, and way too few calories in general.

Anyway I've been studying The Math of Salt Loss by Jonathan Toker, who is an elite runner/triathlete, has a Phd In organic chemistry, and is the inventor of Saltstick.

However please note that natural sodium (as in celery juice and so on) is usually the healthiest option - just make sure to get organic. I'm a celery stick man!



Sorry about the dumb video - back to replacing salt loss. In summary:

• if your race is likely to last longer than 3-4 hours, 
• the weather is hot and humid, ie. you'll be sweating considerably, and 
• you plan to avoid dehydration by replacing most of the lost fluids, 
• then you'd better take some sodium during the race, but
• aim for just the right amount, as excessive sodium intake is harmful.