Category: Fasted cardio

A 2020 review of studies on fasted endurance training found no solid link to increased fat oxidation, challenging a common myth about the practice. So, what happens if you run without eating breakfast, and is it a good idea for you? The answer depends heavily on your individual fitness goals, intensity, and duration.

According to sports nutritionists, your body's glycogen stores are often sufficient to fuel low-to-moderate intensity exercise for up to 60 minutes. This means for most individuals, the answer to "can I run 4 miles without eating" is yes, but it depends on factors like intensity, hydration, and your personal fitness level. This article will explore the science behind fasted running and help you decide if it's right for you.

According to Healthline, exercising on an empty stomach may cause side effects like lightheadedness and dizziness due to depleted blood glucose. Understanding exactly what happens if you don't eat and then run is crucial for optimizing your performance, managing your energy levels, and prioritizing safety during your workouts.

Studies suggest that exercising before eating can increase fat oxidation during the workout. However, determining exactly how long should you run fasted is crucial for balancing potential benefits with performance and safety concerns.