This clinical trial, sponsored by National Taiwan Normal University, investigates the effects of different pre-exercise breakfast compositions on metabolic health outcomes in physically active men. The focus on dietary interventions (high protein vs. high carbohydrate) presents potential commercial opportunities in the nutrition and fitness sectors, particularly for products aimed at optimizing exercise performance and metabolic health. Given the increasing global emphasis on health and wellness, successful outcomes could lead to partnerships with food and supplement companies. However, the trial's limited demographic (healthy men aged 30-55) may restrict broader market applicability. Competitive analysis should consider existing products targeting similar metabolic health outcomes and the potential for differentiation based on trial findings.