The Science-Backed Benefits of Running on Empty

As run clubs continue their global domination, athletes are becoming more and more interested in the mechanics of the sport and the best ways to train and improve their pace. They’re also starting to explore the ideal diets to fuel their training, and for some runners, the food that works the best is no food at all.

“Fasted cardio” and “low-glycogen” training are two buzzworthy concepts in the running world. While they share some overlap, each has its own definition, benefits, and drawbacks.