Does fasted training burn more fat?
Yes, during the session — but this does not automatically translate to greater fat loss over time. In a fasted state, glycogen stores are lower and fat oxidation is higher during the workout. However, studies consistently show that total daily calorie balance, not the timing of the workout, is the dominant driver of body composition change.
For performance goals, fasted training typically reduces peak output in high-intensity sessions. For endurance athletes, some research supports "train-low" periodisation (deliberately training with low glycogen), but this is a targeted strategy rather than a blanket recommendation.