The Myth of Fasted Cardio: Fact or Myth?

What Does the Science Say?

While fasted cardio can lead to a greater proportion of fat being burned *during* the exercise session itself, research consistently shows this acute effect does not translate to greater overall fat loss or changes in body composition over time. The body compensates, and total daily energy deficit, rather than the timing of fuel utilization during exercise, remains the primary driver of weight loss. Performance can also be reduced, potentially leading to lower overall calorie expenditure.