What amount of energy deficiency must occur to lose one pound of body fat?
a. 1200 kcal
b. 1800 kcal
c. 2000 kcal
d. 3500 kcal
Answer: d. 3500 kcal
3500 kcal must be deficient in order to lose one pound of body fat. so in order to lose about a pound a week, each day should net about 200 kcal deficiency.