Carole is talking about her nutrition strategy built during her time racing as professional triathlete. There are several ways to adjust our nutrition plan. Learning how become an hybrid athlete and knowing how to switch from a diet including carbs to a high-fat low carbs diet can be a solution to the biggest challenge faced by the endurance athlete: re-fueling.  Carole is using and transferring the same fueling methods to her ultra-running and mountaineering endurance life. Daily life, training and racing are calling for very different diets. How can endurance athletes maximise their performances? What do we eat before a race? How do we eat during training?