Question

For a moderately active underweight adult man, you would recommend _____ Kcal/kg ideal body weight/day.

• A. 50
• B. 45
• C. 40
• D. 35

Hint:

Energy calculations for weight management are always based on ideal body weight (IBW) rather than actual weight.
This ensures nutrient delivery is targeted toward achieving a healthy body composition.

Answer 1

The Correct Option is C

Step 1: Understanding the Concept:
Nutritional therapy for underweight individuals focuses on promoting weight gain by creating a positive energy balance.
Daily energy requirements are calculated per kilogram of ideal body weight (IBW) and adjusted based on physical activity levels.

Step 2: Detailed Explanation:
For individuals who are underweight (BMI \( < 18.5 \)), the dietary goal is to provide additional energy to build muscle and fat tissue.
Energy requirements for weight gain are calculated based on physical activity levels:
- Sedentary underweight individuals: 35 kcal/kg IBW/day.
- Moderately active underweight individuals: 40 kcal/kg IBW/day.
- Highly active underweight individuals: 45 to 50 kcal/kg IBW/day.
A recommendation of 40 kcal/kg of ideal body weight provides a moderately active underweight man with the extra energy needed to promote gradual, healthy weight gain.
Therefore, the recommended energy intake is 40 Kcal/kg/day.

Step 3: Final Answer:
A daily intake of 40 Kcal/kg ideal body weight is recommended for a moderately active underweight adult man.