If a total of 2000 kcal were consumed (250 grams of carbohydrates, 66 grams of fat, and 102 grams of protein), what percentage of energy comes from carbohydrates, fat, and protein?
A. 30% carbohydrate, 50% fat, and 20% protein
B. 50% carbohydrate, 35% fat, and 15% protein
C. 20% carbohydrate, 30% fat, and 50% protein
D. 50% carbohydrate, 30% fat, and 20% protein

As there is a total of 2000 Kcal. 250 g of carbohydrate will contain 1000 kcal (250 g * 4 =1000kcal). Similarly 66g of fat will contain (66*9=594kcal) .While 102 g of protiens will contain (102 * 4=408kcal). As the percentages are counted by formula Individual calories /total calories * 100. carbs contribute 50% as per the fromula 1000/2000 *100 .Similarly fat contributes 30% as per formula 594/2000 * 100 while protiens contributes 20% as per the same formula 408/2000 * 100.

andromache andromache · Answer 2 · 2022-02-08T15:58:19+01:00

The correct option is D) 50% carbohydrate, 30% fat , and 20% protein

Calculation of energy percentage:

1 gram of carbohydrate and protein comprise nearest of 9 kcal while on the other hand, 1 gram of lipid contains 9 kcal.

For carbohydrate, = [tex]1000\div 2000 \times 100[/tex] = 50%

For fat [tex]= 594\div 2000 \times 100[/tex] = 30%

For proteins = [tex]408\div 2000 \times 100[/tex] = 20%

Based on this above computation, the option D is correct.

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