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Fuels for Exercise

  • By: Melinda M. Manore & Lynn Cialdella Kam
  • In: Encyclopedia of Lifestyle Medicine & Health
  • Edited by: James M. Rippe
  • Subject:Health Psychology / Behavioral Medicine, Public Health Education & Health Promotion, Health Psychology

Carbohydrate and fat are the primary macronutrients used for fuel during exercise. After exercise, carbohydrate and protein are the primary macro-nutrients that are responsible for replenishing energy stores and rebuilding muscle tissues, respectively. To maintain energy balance and exercise performance, energy intake must also be adequate to meet the energy demands of exercise and recovery. The focus of this entry is to review the current macronutrient and energy recommendations for active individuals.

Macronutrient Needs

During exercise, carbohydrate and fat are the primary macronutrients metabolized to provide fuel through adenosine triphosphate (ATP). After exercise, carbohydrate and protein play an essential role, specifically in the replenishment of glycogen stores and the repair and building of lean body tissue. The current macronutrient recommendations for active individuals are summarized in Table ...

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