Yes. In fact, working out while fasting can help you burn more fat and improve your overall health. However, it's important to remember that you shouldn't overdo it. If you're new to intermittent fasting, start slowly by working out for 20-30 minutes a day. Once your body gets used to the fasted state, you can gradually increase your workout time. If you're doing a high-intensity workout, it's best to do so during non-fasting periods, so you can eat something before or during your workout. This will help you avoid feeling lightheaded or dizzy.