Do the recommendations in this chart depend at all on the weight of the athlete? At 63 kg I'm lighter than most men, so I have always assumed my carbohydrate needs are less. To get to 90 g/ hour in an Ironman using my preferred products, I would have to drink a bottle of Infinit Go Far (66g) plus eat a Honey Stinger Waffle (21g). That's more than I usually consume in training. In a typical ride of 4-5 hours on the trainer, I will consume a bottle/ hour plus one wafer over the course of the whole ride, which translates to about 70g/ hour. I drink Infinit Repair mixed with soy milk immediately afterwards, which is roughly 70 g of carbohydrates. I burn a little over 600 calories per hour, so I figure I'm replacing about half of them. One thing different about training versus the race is that I usually eat breakfast shortly before I jump on the bike. I'm not hungry when I finish, but looking at this chart is making me wonder if I need to increase my intake in order to survive that marathon. I am training for but have never done an IM, so I do not have any on-course experience on which to draw. Any advice is appreciated.