A friend tells you that he is going on a low-carb diet to lose weight because he

Question

A friend tells you that he is going on a low-carb diet to lose weight because he thinks that carbs contain more energy than fats or protein. What would you tell your friend about his plan?

A) This is a good idea because sugars have more electrons than fats and protein.
B) This is an incorrect idea because fats contain more hydrogen atoms than carbohydrates and

protein.
C) This is an incorrect idea because all food molecules store the same amount of energy.
D) This is a good idea because sugars enter the fuel breakdown pathway earlier than other food molecules.

Explanation / Answer

Correct answer is option D

* Option A is incorrect because proteins and carbohydrates have similar energy content, whereas fats contain double the energy than the rest two.

* Option B is not precisely related to the idea of the person. Though fats are more reduced than carbohydratea and proteins, and thus yield more energy, the person opts only a low carb diet but do not indicate taking a high fat diet.

* Option C is incorrect because foods vary in their energy content, fats yiled comparatively more energy (about 9 k cal/gm), whereas proteins and carbohydrates yield about 4.3 k cal/gm.

* Option D is correct because sugars are broken down very fast and immediately enter into the fuelling metabolic pathways, whereas other food forms need to be converted into metabolizable forms

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