Sodium Supplementation and Exercise-Associated Hyponatremia during Prolonged Exercise On the ‘Western States Endurance Run’ over 100 miles was studied by the supply of salt a bit brings with respect to stress-induced hyponatremia.In the whole collective, 6.6% of the runners came to a hyponatremia.
Over 90% of the runners took a salt preparation to themselves. It showed a direct connection between the sodium value in the blood after the competition and the supply of sodium during the course.However, there was no difference in the sodium supply between runners with and without hyponatremia at the end of the run. The supply of sodium is much less important than a restriction of the fluid supply to avoid a hyponatremia in the ultramarathone. Can be found under https://pubmed.ncbi.nlm.nih.gov/25551404/