Multiple Choice
In the topic of Energy in Food, how many kilocalories (Calories) are provided by 30 grams of fat, assuming fat provides 9 kcal per gram?
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1. Science of Nutrition
Energy in Food
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In nutrition, how many kilocalories (Calories) are provided by 1 gram of carbohydrate?
A
4 Calories per gram
B
9 Calories per gram
C
2 Calories per gram
D
7 Calories per gram
Verified step by step guidance1
Understand that in nutrition, the energy provided by macronutrients is measured in kilocalories (Calories). Each macronutrient—carbohydrates, proteins, and fats—provides a specific amount of energy per gram.
Recall the standard energy values for macronutrients: carbohydrates provide 4 Calories per gram, proteins provide 4 Calories per gram, and fats provide 9 Calories per gram.
Identify that the question asks specifically about carbohydrates, so focus on the energy value associated with carbohydrates.
Use the known nutritional fact that 1 gram of carbohydrate yields 4 kilocalories (Calories) of energy.
Conclude that the correct answer to the question is 4 Calories per gram for carbohydrates.
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