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Glucose–Fructose Enhances Performance versus Isocaloric, but Not Moderate, Glucose
Glucose-fructose improves performance compared to equal calories of glucose, but not compared to moderate glucose
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Abstract
Glucose-and-fructose coingestion resulted in a 2.5-minute faster cycling time trial performance compared to placebo.
- Time trial performances were improved with glucose-and-fructose coingestion (50.4 ± 2.2 min) compared to placebo (52.9 ± 3.7 min).
- A moderate-glucose beverage also enhanced performance (51.1 ± 2.4 min) compared to placebo.
- Glucose-and-fructose coingestion showed a likely improvement (3.0%) over high-glucose ingestion.
- Few incidences of gastrointestinal distress were reported across all beverage trials.
- The effects of glucose-and-fructose coingestion compared to moderate doses of glucose remain unclear.
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