Whole-Body Regulation of Energy Expenditure, Exercise Fuel Selection, and Dietary Recommendations

Authored by: Peter W.R. Lemon

The Routledge Handbook on Biochemistry of Exercise

Print publication date:  December  2020
Online publication date:  December  2020

Print ISBN: 9780367223830
eBook ISBN: 9781003123835
Adobe ISBN:


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Huge amounts of energy are expended by athletes, both in training and competition. Often, energy and macronutrient intake are insufficient to compensate for this large energy expenditure. As a result, exercise performance can be affected adversely. It is recommended that those involved in regular exercise training consume 6–10 g•kg−1•d−1 of carbohydrate, ∼2 g•kg−1•d−1 of protein, and 1–2 g•kg−1•d−1 of fat. Moreover, energy intakes of 50 kcal•kg−1•d−1or greater will be necessary to maintain energy balance. Substantial interindividual differences exist, so regular monitoring of body composition and adjustments are also recommended.

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