I have been helping athletes to create nutrition plans for their races for a long time. For 25 years, I have worked with, listened to and learned from professional as well as recreational athletes. My advice was always based on evidence, studies that we and others cond...
Dehydration, if severe enough, can slow you down. Drinking can prevent this, but if you need to drink and how much depends on your sweat rate. It is easy to estimate your sweat rate and here we describe how to do this!
"My connection is with Professor Asker after I ran the London Marathon a few years back. Prof Asker helped me to try to get the best out of my abilities. He tested me in Ethiopia during training and after training, everything; and worked out my fueling plan. I am very grateful for his help."
Haile Gebrselassie (Ethiopia) "Greatest distance runner of all times" 27 World Records