Physical effort is harmful to digestion

According to a survey of 25,000 athletes participating in 101 triathlon competitions, 8.9% suffered gastric discomfort and 8.6% intestinal discomfort.
I.X.I.

According to a survey of 25,000 athletes participating in 101 triathlon tournaments in 1989-90, 8.9% suffered gastric discomfort and 8.6% intestinal discomfort. In many cases, necrotic lesions have been detected in the mucosa due to pH change. 14% of retired athletes were due to stomach and intestinal discomfort.

Babesleak
Eusko Jaurlaritzako Industria, Merkataritza eta Turismo Saila