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| Photo: Damon Dahlen, AOL |
There's nothing sexy about today's topic. But runner's diarrhea (characterized by loose stools that occur during or immediately after a run) affects anywhere from a quarter to a third of runners. Considering the large numbers impacted by it, I find that runners don't talk about it much. I know it's not exactly appropriate water-cooler convo, but the problem is uncomfortable, inconvenient and clearly pervasive.
"Many races are lost in the port a pottie," says
Nancy Clark, sports nutritionist and author of "
Nancy Clark' s Food Guide for Marathoners." And because you've all trained too hard for too long to let your digestive system dictate your race-day performance, I spoke to Clark to understand the causes of runner's trots and how to treat it.
There's a reason there's no such thing as cyclist's trots. "It's the jostling of the intestines during running that stimulates motility," says Clark. Cycling and other exercises, where the body is stable, don't have the same effect running does. Of course, not everyone who runs will have stomach trouble. "People have different sensitivities in their digestive tracts and we're all metabolically individual. It's similar to how some people are wired all day after a cup of coffee and others aren't." Also at risk for diarrhea from running are new runners and women, whose hormonal fluctuations make them more susceptible.