Better endurance performance from consuming several types of digestible carbohydrates

Ingestion of glucose and fructose resulted in an 8% improvement in cycling time-trial performance compared to glucose alone.

• Eight trained male cyclists participated in the study.
• All subjects consumed either a glucose-only drink, a glucose and fructose drink, or a water placebo during exercise.
• The glucose and fructose drink provided carbohydrate at the same rate as the glucose-only drink but resulted in faster performance.
• Time to completion was 4022 seconds for the glucose and fructose drink, compared to 3641 seconds for the glucose-only drink.
• Carbohydrate oxidation rates were similar between glucose and fructose and glucose-only drinks, indicating potential sparing of the body's carbohydrate stores.

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