Increase in consumption of which of the following has the greatest effect on an increase in body weight?

Increase in consumption of which of the following has the greatest effect on an increase in body weight?

a.
Carbohydrate intake
b.
Protein intake
c.
Fat intake
d.
Total kilocalories

ANS:  D

There is little evidence that any individual calorie food group (carbohydrate, protein, fat) has a unique effect on body weight. Kilocalories are the key factor to controlling body weight—not the proportions of fat, carbohydrates, and protein, but balancing caloric intake with energy expenditure.