A new study from Northumbria University suggests that people burn up to 20% more body fat by exercising in the morning on an empty stomach. The British Journal of Nutrition described the study, in which researchers asked participants to exercise at 10 AM—one group had eaten breakfast, the other hadn’t. They discovered that that those participants who skipped breakfast burned almost 20% more fat compared to those who had eaten.

One caveat: Since the study only had 12 participants, we find the results interesting—but not convincing. We still encourage everyone to eat a light-but-healthy meal before a morning workout. What do you think?