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Question

Which one provides twice as much energy as carbohydrates

A
Vitamins
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B
Proteins
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C
Minerals
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D
Fats
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Solution

The correct option is B Fats
The actual amount of energy liberated in the human body due to combustion of 1gm of food is known as physiologic value of food. Physiological value of carbohydrates, fats and proteins are 4.0 kcal/g, 4.0 kcal/g and 9.0 kcal/g respectively. Vitamins are organic compounds that are required in very small amounts for supporting normal physiologic functions. We need vitamins in our diet as our body cannot synthesize them quickly to meet our daily needs. Similarly minerals are inorganic components essential for us and are requiring small amounts but their deficiency can create chronic health differences.
Thus, the correct answer is option D.

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