Triathletes and endurance athletes are very susceptible to dehydration and even more so, a heat-related injury. What must be understood is that the body is compromised when we place intentional training stress on the body through training and racing. However, what is even more serious is that many athletes are not taking the daily precautions to be "healthy" on a day to day basis. So as you can imagine, when an athlete throws in 8,10 or more hours of training per week, there is even more confusion on how to meet daily and sport needs but very little time to even make time/energy to ensure that the body is healthy going into workouts and well fueled/hydrated during workouts. Because endurance racing is far from normal or easy for the human body to handle, health professionals acknowledge that metabolic demands during training/racing in long distance events are not easy to meet. That is, it is very hard for the body to take in the appropriate amount of calories, ...
3x Author, Board Certified Sports Dietitian, Master of Science in Exercise Physiology, 2017 IM CHOO Amateur Female Champion, 19xIronman finisher including 6xIM World Championship finisher, Triathlon Coach, 30-year Vegetarian.Trimarnicoach.com