It’s race day, and you are ready to cash in on your hard-earned fitness after hundreds of hours devoted to swimming, biking, and running. During the race, all goes as planned in the swim and bike—only for a plethora of gastrointestinal issues to hit you on the run: nausea, bloating, reflux, stomach pain, cramping, diarrhea, and vomiting. Heaven forbid, you might even be at risk of a DNF!

If this is your story, you are not alone. GI problems are the most common cause of underperformance in endurance events. [Read more…]