2. Should You Work Out On An Empty Stomach?
The Confusion We know that food fuels us. But if you’re looking to lose weight, some people—possibly those who read the 1999 bestseller Body for Life—believe exercising with a growling tummy may help burn fat faster. “The rationale behind this theory is that low glycogen levels cause your body to shift energy utilization away from carbohydrates toward fat,” says Keri Peterson, MD, a medical contributor to HealthiNation.