How Often Should You Exercise to Get a Flat Stomach?
Read an in-depth explanation about How Often Should You Exercise to Get a Flat Stomach.
Working out on an empty stomach won't hurt you—and it may actually help, depending on your goal. But first, the downsides. Exercising before eating comes with the risk of “bonking”—the actual sports term for feeling lethargic or light-headed due to low blood sugar.