The ideal fueling strategy during training/racing is the consumption of carbohydrates in a way that can be quickly emptied from the stomach, be rapidly digested and quickly absorbed so it can be used by the working muscles. Just because you are consuming a gel, bar, solid food or drink with carbohydrates, this doesn't mean that your muscles are receiving those carbohydrates. The takeaway from this is not all carbs are the same. Exercise shifts blood flow away from the GI (Gastrointestional tract) towards the active muscles and lungs. Digestion is compromised during exercise. This is why it's important that your carb choices during exercise do not require a lot of digestion. The quicker and easier those carbs are emptied from the stomach, the quicker those carbs can be used by the active muscles. Also, the more digestion that is required, the greater risk for GI issues. After digestion comes absorption. For the muscles to continue to perform during long distance activi...
3x Author, Board Certified Sports Dietitian, Master of Science in Exercise Physiology, 20 x Ironman finisher, 3x XTRI finisher, 6xIM World Championship finisher, Triathlon Coach, 32-year Vegetarian. Trimarnicoach.com