For years, the conventional wisdom around exercise has been to fuel up with a pre-workout meal. However, recent research suggests that exercising before breakfast may be the most healthful choice for many people.
In this article, we will explore the benefits of exercising before breakfast, the science behind it, and some tips for getting started.
Benefits of Exercising Before Breakfast
- Burn More Fat: Exercising before breakfast may help to burn more fat. When we exercise, our bodies use a combination of carbohydrates and fat for fuel. When we exercise in a fasted state, our bodies have depleted our carbohydrate stores and are more likely to rely on fat for fuel.
- Improve Insulin Sensitivity: Exercising before breakfast may improve insulin sensitivity. Insulin is a hormone that helps to regulate blood sugar levels. When we are insulin sensitive, our bodies are better able to use insulin to regulate blood sugar levels.
- Boost Energy Levels: Exercising before breakfast may boost energy levels. When we exercise, our bodies release endorphins, which can help to boost mood and energy levels.
- Save Time: Exercising before breakfast may save time. By getting a workout in before starting the day, we can free up time later in the day for other activities.

Science Behind Exercising Before Breakfast
Studies have shown that exercising before breakfast can have significant health benefits. A study published in The Journal of Clinical Endocrinology and Metabolism found that participants who exercised before breakfast had improved insulin sensitivity and greater fat burning than those who exercised after breakfast.
Another study published in the American Journal of Physiology found that exercising in a fasted state can lead to an increase in mitochondrial biogenesis, which is the process by which our bodies produce energy.
Tips for Getting Started
- Start Slow: If you are not used to exercising in a fasted state, it’s important to start slow and gradually build up your tolerance.
- Stay Hydrated: Make sure to drink plenty of water before and during your workout to stay hydrated.
- Choose Low-Intensity Workouts: It may be best to start with low-intensity workouts, such as walking or yoga, before moving on to higher-intensity workouts.
- Listen to Your Body: Pay attention to how your body feels during and after your workout. If you feel lightheaded or dizzy, it may be a sign that you need to eat something before exercising.
In conclusion, exercising before breakfast may be the most healthful choice for many people. It can help to burn more fat, improve insulin sensitivity, boost energy levels, and save time. If you decide to try it before breakfast, it’s important to start slow, stay hydrated, choose low-intensity workouts, and listen to your body. As with any exercise routine, it’s important to consult with a healthcare provider before getting started.