In the context of energy balance, approximately how many pounds of body fat would correspond to a 400-kcal energy deficit, assuming $3500kcal=1lb$ of body fat?

• A. About 0.11 lb
• B. About 3.5 lb
• C. About 0.25 lb
• D. About 1.1 lb

Answer: (A)

Verified step by step guidance

1. Understand the relationship between energy deficit and body fat loss: 3500 kcal of energy deficit is approximately equal to 1 pound of body fat lost.
2. Identify the given energy deficit in the problem, which is 400 kcal.
3. Set up a proportion to find the equivalent pounds of body fat for the 400 kcal deficit using the formula: \(\text{Pounds of fat} = \frac{\text{Energy deficit (kcal)}}{3500 \text{ kcal/lb}}\).
4. Substitute the given values into the formula: \(\text{Pounds of fat} = \frac{400}{3500}\).
5. Simplify the fraction to find the approximate pounds of body fat corresponding to the 400 kcal deficit.