Sports Nutrition: Why Overdrinking Can Be Deadly
How athletes fuel, hydrate and recover, and which popular nutrition beliefs the science overturns.
Sports Nutrition · 50 questions
Try 3 questions
1. For a typical inactive adult, roughly what share of daily energy use goes to resting metabolism?
- About 20 to 30 percent
- About 60 to 70 percent
- About 90 to 95 percent
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Answer: About 60 to 70 percent
Keeping organs, brain and tissues alive at rest is the largest part of daily energy expenditure for most people; exercise is usually a much smaller slice.
2. Which component of daily energy expenditure varies most between people of similar body size?
- Everyday movement such as fidgeting
- The energy cost of digesting food
- Resting metabolism of the organs
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Answer: Everyday movement such as fidgeting
Non-exercise activity thermogenesis, from standing, walking and fidgeting, can differ by hundreds of kilocalories a day between similar people.
3. Which macronutrient costs the body the most energy to digest and process?
- Simple sugars
- Dietary protein
- Dietary fat
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Answer: Dietary protein
The thermic effect of protein is roughly 20-30% of its energy, far higher than for carbohydrate or fat.
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