" The day before the marathon, he will focus on taking on carbohydrates and will avoid eating meat to prevent stomach issues – “I like to eat rice, spaghetti or ugali the day before a marathon†Ugali is a maize / cornmeal based staple which is high in carbohydrate and a popular dish in Kenya – perhaps one of the small but many reasons that the nation excels so much in endurance running."
"The night before a marathon, Eliud will drink a bottle of Etixx Energy Load in order to top up his glycogen stores before he goes to sleep, ensuring he has sufficient energy available in the morning. “I only have a light breakfast on the morning of a race, just some tea and plain bread, as I can’t take a lot of food on. I will drink another bottle of Energy Load around 3 hours before the start of the race, no later – as I don’t want to be stopping for a toilet break whilst I’m running!â€"
"Eliud believes that rest and recovery is just as important as putting in hard training sessions, “after a hard training run or a marathon race, – I will have a Recovery Shake within 30 mins after, then I will relax and perhaps also eat a Recovery bar an hour later.â€"
https://etixxsports.com/gb/posts/how-does-the-world-s-fastest-marathon-runner-fuel-26-2