Edinburgh RM, et al. - Twelve healthy physically active young men who completed three trials in a randomized order (a breakfast of oats and milk, followed by rest [BR], breakfast before exercise [BE], and overnight fasting before exercise [FE]) were assessed by researchers to evaluate the impact on 24-hour energy balance of omitting vs consuming breakfast before exercise. The 24-hour energy consumption was estimated on the basis of the food eaten for breakfast, followed by an ad libitum lunch, snacks, and dinner. Compared to both the BR trial and the BE trial, the 24-hour energy balance was −400 kcal for the FE trial, which was significantly lower. Plasma glucose utilization in FE (mostly representing liver glucose utilization) had a positive association with energy consumption compensation at lunch, inferring that liver carbohydrate is involved in after exercise energy-balance regulation. For post-exercise, neither exercise energy expenditure nor restricted energy consumption via breakfast omission was totally compensated. To induce a short-term energy deficit in healthy men, breakfast omission prior to exercise made a more negative daily energy balance and thus, could be a beneficial strategy.