Ryan Hall's Marathon Race Diet

All those diets that tell you to avoid carbs? Well, they can stuff it, said Hall. While training, it's crucial to increase your carb intake — your body will need to support these workouts with the extra fuel that carbohydrates can provide. Hall suggests aiming for a 4:1 ratio of carbs to protein, to eat five times a day, and to avoid heavily processed or fatty foods. Fresh fruits and veggies are also a win in Hall's book.

Hall's training meal plan: While training for a marathon, Hall said he eats around 6,000 calories per day and never goes more than a few hours without snacking. (The man is running 20 miles per day, five days a week, after all!) "When training for an endurance run, your body needs a lot of food since it is always recovering or refueling," said Hall. Some of Hall's favorite training foods include pasta, fish, and nut butter sandwiches.