To be depleted can take on many forms. In endurance sport, depletion often refers to an athlete’s fueling state. Are they stocked up on muscle glycogen, have they properly fueled with a balanced diet of proteins, carbohydrates, and “good” fats or are they trending towards empty? Carbohydrates are the body’s primary fuel source, particularly during exercise, however, fat molecules are a caloric gold mine when it comes to available energy. The caveat is that fat...