Abstract
We have been interested in the ergogenic aid effects of food components and supplements for enhancing endurance exercise performance. For this purpose, acute or chronic (-)-hydroxycitrate (HCA) ingestion might be effective because it promotes utiliza-tion of fatty acid as an energy source. HCA is a competitive inhibitor of the enzyme ATP: cit-rate lyase, thereby increasing inhibition of lipogenesis in the body. Many researchers have reported that less body fat accumulation and sustained satiety cause less food intake. After focusing on exercise performance with HCA ingestion, we came up with different results that show positive effects or not. However, our previously reported data showed increased use of fatty acids during moderate intensity exercise. For future research, HCA and co-inges-tion of other supplements, such as carnitine or caffeine, might have greater effect on glyco-gen-sparing than HCA alone.