Gastrointestinal distress is common during a 161-km ultramarathon. An American group has studied the aspect of digestive complaints in finishers on 100 miles, Western States Endurance Run ‘. With 272 runners (71% of the finishers) a questionnaire could be collected.Amazingly, 96% of the runners to have suffered complaints in the field of digestive tract suffered. In around 44% of the finishers, the complaints were eligible, leaving around 86% of nausea.
In the non-finishers, around 36% reported that the digestive complaints led to the task of the race, with nausea of around 91% of the most common problem. The study can be found under https://pubmed.ncbi.nlm.nih.gov/25716739/