If your usual energy intake exceeds your energy requirements by 500 kcal per day, this could lead to weight gain of approximately
A. 1 pound per month.
B. 1/2 pound per week.
C. 2 pounds per week.
D. 1 pound per week.
Answer: D. 1 pound per week.
Explanation:
One pound of fat yields approximately 3500 kcal. An excess of 500 kcal per day would add up to 3500 excess kcal over a week's time. Theoretically, this would result in about 1 pound of weight gain per week. Please note, however, there are many factors other than changes in energy intake that regulate changes body weight, including changes in appetite, physical activity, and thyroid hormone production. Although the 3500-kcal rule is likely to overestimate the impact of changes in energy intake on changes in body weight, it is still a good starting point for diet planning.
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