Glycemic index - a new tool in sport nutrition?

Studies show that glucose and carbohydrate dietary content produce specific physiological effects, but have not yet been linked directly with physical performance. Athletes usually consume low-glucose/high-carbohydrate foods prior to exercise, which increases carbohydrate availability as an energy source and enhances glycogen storage after exercising. Glycemic indexing can monitor these levels but cannot provide direct correlations to physical performance.