Don't Forget About Cardio
Lifting weights is an effective way to burn fat and build muscle, but fasted cardio can also help. "Fasted cardio is exercise that increases your heart rate done in a fasted state, or in other words, done when your body is not fed and no longer processing food," Perri Halperin, MS, RD, a clinical dietitian at Mount Sinai Hospital told POPSUGAR.
When you do fasted cardio, your body uses fat as a source of energy instead of carbohydrates, Perri explained. Fasted cardio isn't better than other fat-burning ways of training like sprinting and weightlifting, "It's just different," she said. Because fasted cardio causes your blood sugar to drop, which can lead to lightheadedness and fainting, Perri said some people may want to skip it.
There is one caveat when it comes to fasted cardio: your body may use energy from muscle, which means some people may experience muscle loss. Before implementing fasted cardio into your routine, speak with your physician as it can affect metabolic conditions like diabetes.