In the context of energy balance and body weight change, approximately how many kilocalories (Calories) are stored in 1 pound (lb) of body fat?

• A. About 1,000 kcal
• B. About 500 kcal
• C. About 3,500 kcal
• D. About 7,700 kcal

Answer: (C)

Verified step by step guidance

1. Understand that body fat stores energy in the form of triglycerides, and this energy can be measured in kilocalories (kcal).
2. Recognize that the commonly accepted estimate for the energy content of 1 pound (lb) of body fat is based on research and metabolic studies.
3. Recall that 1 pound of body fat is approximately equivalent to 3,500 kilocalories of stored energy.
4. This value is used in nutrition and weight management to estimate how changes in energy intake or expenditure affect body weight.
5. Therefore, when calculating energy balance and weight change, use the conversion: 1 lb of body fat ≈ 3,500 kcal.