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Clark, Nancy M.S., R.D., CSSD, FACSM

ACSM's Health & Fitness Journal: May/June 2012 - Volume 16 - Issue 3 - p 22–26
doi: 10.1249/01.FIT.0000414752.46137.f4

LEARNING OBJECTIVES • To understand the types of exercise that are associated with gastrointestinal distress.

• To recognize medical issues that might contribute to exercise-associated diarrhea.

• To be able to advise athletes on ways to manage exercise-associated diarrhea.

Exercise-associated diarrhea afflicts an estimated 30% to 50% of athletes, particularly those who exercise at a high intensity in running-type sports. Athletes with a history of gastrointestinal problems (including irritable bowel syndrome, celiac disease, and lactose intolerance) are predisposed to this problem. While solutions to exercise-associated diarrhea are personal to each athlete, this feature offers guidelines that might provide some relief.

Nancy Clark, M.S., R.D., CSSD, FACSM, is a Boston-area sports nutrition counselor, workshop leader, and author of Nancy Clark’s Sports Nutrition Guidebook, 4th Edition. Her private practice is in Newton, MA.

Disclosure: The author declares no conflict of interest and does not have any financial disclosures.

© 2012 American College of Sports Medicine.