ChemMatters Teacher's Guide

An hour to 90 minutes before the race, eat a snack of 100 to 200 calories from easily digestible food sources, such as a piece of fruit, a serving of nuts, a granola bar, or a bagel of piece of bread with peanut butter. Energy bars can also make a good pre-race snack, but look for energy bars high in carbs and save protein bars for after the race. ................
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