Multiple Choice
In nutrition and food energy labeling, what is the difference between a calorie (cal) and a Calorie (Cal) (also written as kilocalorie, kcal)?
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1. Science of Nutrition
Energy in Food
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In nutrition, how many kilocalories (Calories) per gram do vitamins provide?
A
0 kcal/g
B
4 kcal/g
C
9 kcal/g
D
2 kcal/g
Verified step by step guidance1
Understand that kilocalories (kcal) per gram indicate the amount of energy a nutrient provides when metabolized by the body.
Recall the main macronutrients and their energy values: carbohydrates provide 4 kcal/g, proteins provide 4 kcal/g, and fats provide 9 kcal/g.
Recognize that vitamins are micronutrients, which means they are required in small amounts and do not provide energy (calories) themselves.
Since vitamins do not undergo metabolism to release energy, they provide 0 kcal/g.
Therefore, the correct answer is that vitamins provide 0 kilocalories per gram.
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