Effects of Medium-Chain Triacylglycerol Ingested With Carbohydrate on Metabolism and Exercise Performance

Feb 26, 1999International journal of sport nutrition

How medium-chain fat with carbohydrate affects metabolism and exercise performance

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Abstract

9 endurance-trained cyclists ingested different amounts of medium-chain triacylglycerol (MCT) and carbohydrate during exercise tests.

  • Ingesting MCT did not lead to gastrointestinal symptoms during the exercise.
  • MCT intake resulted in increased levels of serum free fatty acids and beta-hydroxybutyrate.
  • Despite higher levels of free fatty acids and beta-hydroxybutyrate, MCT ingestion did not influence fuel oxidation.
  • The high carbohydrate content in the pretrial meal may have increased plasma insulin levels.
  • Increased insulin levels may have facilitated carbohydrate oxidation, even with elevated free fatty acids present.

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