Increased Carbohydrate Oxidation after Ingesting Carbohydrate with Added Protein

Inclusion of protein in a carbohydrate-recovery supplement resulted in a significant increase in whole-body carbohydrate oxidation during exercise, from 41.7 to 48.4 mg.kg(-1)min(-1).

• Higher insulin responses were observed with the carbohydrate-protein solution compared to the carbohydrate-only solution.
• Muscle glycogen resynthesis rates were similar for both treatments, averaging around 12.3 mmol and 12.1 mmol glucosyl units per kilogram of dry mass per hour.
• Muscle glycogen degradation rates during subsequent exercise were also comparable between treatments.
• The addition of protein did not affect muscle glycogen levels but enhanced the utilization of carbohydrate from other sources during exercise.

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