The energy content per gram for carbohydrates, proteins, and fats is measured as what?

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Prepare for the AFAA Group Fitness Instructor Test. Use flashcards and multiple choice questions, complete with hints and explanations. Get ready to ace your exam!

Multiple Choice

The energy content per gram for carbohydrates, proteins, and fats is measured as what?

Explanation:
Energy content per gram of macronutrients is expressed as Calories per gram in nutrition. In everyday food labeling, the term Calories actually represents kilocalories, so saying Calories per gram conveys the same energy values used to compare carbs, proteins, and fats. This is why energy densities are commonly cited as about 4 Calories per gram for carbohydrates and proteins and about 9 Calories per gram for fats. Joules per gram exist as a scientific energy unit, but nutrition practice uses calories (kilocalories) per gram, and “digestive units” aren’t a unit used for energy.

Energy content per gram of macronutrients is expressed as Calories per gram in nutrition. In everyday food labeling, the term Calories actually represents kilocalories, so saying Calories per gram conveys the same energy values used to compare carbs, proteins, and fats. This is why energy densities are commonly cited as about 4 Calories per gram for carbohydrates and proteins and about 9 Calories per gram for fats. Joules per gram exist as a scientific energy unit, but nutrition practice uses calories (kilocalories) per gram, and “digestive units” aren’t a unit used for energy.

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